PHIL LIGRANI – RECENT PUBLICATIONS
ARCHIVAL JOURNAL PUBLICATIONS – LAST 8 YEARS
2018
175. Heat Transfer Enhancements From Elastic Turbulence Using Sucrose-Based Polymer Solutions (P. M. Ligrani, D. Copeland, C. Ren, M. Su, and M. Suzuki), AIAA Journal of Thermophysics and Heat Transfer, Vol. 32, No. 1, pp. 51-60, January 2018.
176. Internal and External Cooling of a Full Coverage Effusion Cooling Plate: Effects of Double Wall Cooling Configuration and Conditions (Z. Ren, S. R. Vanga, N. Rogers, P. M. Ligrani, K. D. Hollingsworth, F. Liberatore, R. Patel, R. Srinivasan, and Y.-H. Ho), International Journal of Thermal Sciences, Vol. 124, pp. 36-49, February 2018.
177. Vortex Structure Effects on Impingement, Effusion, and Cross Flow Cooling of a Double Wall Configuration (P. M. Ligrani), Journal of Physics: Conference Series, IOP Science Publishing Corp., Vol. 980, pp. 012018-1 to 012018-15, March 2018
178. Flow Structure and Surface Heat Transfer From a Turbine Component Endwall Contoured Using the Ice-Formation Method (S. Winkler, B. Weigand, and P. M. Ligrani), International Journal of Heat and Mass Transfer, Vol. 120, pp. 895-908, May 2018.
179. Double Wall Cooling of a Full-Coverage Effusion Plate, Including Internal Impingement Array Cooling (P. M. Ligrani, Z. Ren, F. Liberatore, R. Patel, R. Srinivasan, and Y.-H. Ho), ASME Transactions-Journal of Engineering for Gas Turbines and Power, Vol. 140, No. 5, pp. 051901-1 to 051901-9, May 2018.
180. Effects of Hole Shape On Impingement Jet Array Heat Transfer With Small-Scale, Target Surface Triangle Roughness (P. McInturff, M. Suzuki, P. M. Ligrani, C. Nakamata, and D. H. Lee), International Journal of Heat and Mass Transfer, Vol. 127, Part A, pp. 585-597, December 2018.

2019
181. Winglet-Pair Target Surface Roughness Influences On Impingement Jet Array Heat Transfer (P. M. Ligrani, P. McInturff, M. Suzuki, and C. Nakamata), Journal of Enhanced Heat Transfer, Vol. 26, No. 1, pp. 15-35, January 2019.
182. Analysis of Shock Wave Unsteadiness Using Space and Time Correlations Applied to Shadowgraph Flow Visualization Data (S. R. Marko, and P. M. Ligrani), Advances in Aerodynamics, Vol. 1, No. 2, pp. 1-25, February 2019.
183. Double Wall Cooling of a Full Coverage Effusion Plate With Cross Flow Supply Cooling and Main Flow Pressure Gradient (P. M. Ligrani, Z. Ren, S. R. Vanga, C. Allgaier, F. Liberatore, R. Patel, R. Srinivasan, and Y.-H. Ho), ASME Transactions-Journal of Engineering for Gas Turbines and Power, Vol. 141, No. 3, pp. 031015-1 to 031015-11, March 2019.
184. Double Wall Cooling of a Full Coverage Effusion Plate With Main Flow Pressure Gradient, Including Internal Impingement Array Cooling (S. R. Vanga, D. Ritchie, A. J. Click, Z. Ren, P. M. Ligrani, F. Liberatore, R. Patel, R. Srinivasan, and Y.-H. Ho), ASME Transactions-Journal of Turbomachinery, Vol. 141, No. 4, pp. 041002-1 to 041002-11, April 2019.
185. Double Wall Cooling of an Effusion Plate With Simultaneous Cross Flow and Impingement Jet Array Internal Cooling (D. Ritchie, A. J. Click, P. M. Ligrani, F. Liberatore, R. Patel, and Y.-H. Ho), ASME Transactions-Journal of Engineering for Gas Turbines and Power, Vol. 141, No. 9, pp. 091008-1 to 091008-11, September 2019.
186. Flow and Heat Transfer Characteristics of Micro Pin-Fins Under Jet Impingement Arrays (X. Lu, W. Li, X. Li, J. Ren, H. Jiang, and P. M. Ligrani), International Journal of Heat and Mass Transfer, Volume 143, Paper No. 118416, pp. 1-14, November 2019.

2020
187. Parametric Study of Wind Tunnel Test Section Configurations For Stabilizing Normal Shock Wave Structure (P. M. Ligrani, and S. R. Marko), Shock Waves, Vol. 30, No. 1, pp. 77-90, January 2020.
188. Thermal Transport of Viscoelastic Fluids Within Rotating Couette Flows (P. M. Ligrani, M. Su, A. Pippert, and R. A. Handler), AIAA Journal of Thermophysics and Heat Transfer, Vol. 34, No. 1, pp. 121-133, January 2020.
189. Recent Investigations of Shock Wave Effects and Interactions (P. M. Ligrani, E. McNabb, H. Collopy, M. Anderson, S. R. Marko), Advances in Aerodynamics, Vol. 2, Article No. 4, pp. 1-23, February 2020.
190. Vortex Generation in a Finitely Extensible Nonlinear Elastic Peterlin Fluid Initially at Rest (R. A. Handler, E. Blaisten-Barojas, P. M. Ligrani, P. Dong, and M. Paige), Engineering Reports, Vol. 2, No. 3, pp. 1-17, March 2020.
191. Double Wall Cooling of An Effusion Plate With Cross Flow and Impingement Jet Combination Internal Cooling: Comparisons of Main Flow Contraction Ratio Effects (P. M. Ligrani, A. J. Click, D. Ritchie, F. Liberatore, R. Patel, and Y.-H. Ho), International Journal of Heat and Mass Transfer, Vol. 150, Article No. 119196, pp. 1-13, April 2020.
192. Effects of Coolant Supply Arrangement on Double Wall Cooling: Hot-Side Effusion Performance and Cold-Side Nusselt Numbers at Different Initial Blowing Ratios (A. J. Click, P. M. Ligrani, D. Ritchie, F. Liberatore, R. Patel, and Y.-H. Ho), International Journal of Heat and Mass Transfer, Vol. 156, Article No. 119808, pp. 1-15, August 2020.
193. Numerical Investigation of Adiabatic Film Cooling Effectiveness Through Compound Angle Variation (S. Tamang, H. Kwon, J. Choi, P. M. Ligrani, J.-H. Lee, Y.-G. Jung, and H. Park), Numerical Heat Transfer, Part A; Applications, Vol. 78, No. 10, pp. 595-618, October 2020.
194. Modeling the Socio-Economic Impacts of Covid-19 Using an Improved Traditional Travel Demand Model (M. Doustmohammadi, P. M. Ligrani, and M. Anderson), Current Urban Studies, Vol. 8, No. 4, pp. 2336-2350, December 2020.

2021
195. Effects of Coolant and Wall Temperature Variations on Impingement Jet Array Thermal Performance (S. Lu, Q. Deng, P. M. Ligrani, H. Jiang, Q. Zhang), Numerical Heat Transfer, Part A; Applications, Vol. 79, No. 1, pp. 68-82, January 2021.
196. Louver Slot Cooling and Full-Coverage Film Cooling With a Combination Internal Coolant Supply (P. M. Ligrani, A. J. Click, M. Hockensmith, J. Knox, C. Larson, A. Fairbanks, F. Liberatore, R. Patel, and Y.-H. Ho), ASME Transactions-Journal of Turbomachinery, Vol. 143, No. 3, Paper No. 031004, pp. 1- 10, March 2021.
197. Louver and Effusion Cooling Heat Transfer For a Double Wall Effusion Plate With Impingement Jet Array Coolant Supply (S. R. Vanga, P. M. Ligrani, J. Knox, F. Liberatore, R. Patel, and Y.-H. Ho), International Journal of Heat and Mass Transfer, Vol. 168, Paper No. 120861, pp. 1- 13, April 2021.
198. Spatial Coherence of Low-Frequency Unsteadiness Associated With a Normal Shock Wave (P. M. Ligrani, K. Goethals, and M. Cox), Aerospace Science and Technology, Vol. 112, Paper No. 106637, pp. 1- 14, May 2021.
199. Second Law Analysis of Aerodynamic Gains Associated With Simple Angle and Compound Angle Full Coverage Film Cooling (S. R. Vanga, and P. M. Ligrani), International Journal of Thermophysics, Vol. 42, Article No. 154, pp. 1- 27, August 2021.
200. EMS Response Time for Patients Critically-Injured From Automobile Accidents Using Regression Analysis (S. R. Vanga P. M. Ligrani, M. Doustmohammadi, and M. Anderson), Current Urban Studies, Vol. 9, No. 3, pp. 581-596, September 2021.

2022
201. EMS Response Time Analyses for a Rural County Using Geographically Weighted Regression with Different Kernel Weighting Functions (S. R. Vanga, P. M. Ligrani, M. Doustmohammadi, and M. Anderson), International Journal of Statistics and Applications, Vol. 12, No. 1, pp. 1-9 January 2022.
202. Characterization of Effective Diffusion Within Viscoelastic Fluids With Elastic Instabilities (V. Hietsch, P. M. Ligrani, and M. Su), Invited Journal Paper, Fluids, Special Issue: Transport in Viscoelastic Fluids (Editors: Robert Handler and Mahmoud Mamou), Vol. 7, No. 1, pp. 33-52, January 2022.
203. Flow Structure and Surface Heat Transfer From Numerical Predictions For a Double Wall Effusion Plate With Impingement Jet Array Cooling (H. Kwon, P. M. Ligrani, S. R. Vanga, and H. Park), International Journal of Heat and Mass Transfer, Vol. 183, Part A, Paper No. 122049, pp. 1- 18, February 2022.
204. Flow and Heat Transfer Characteristics in a Pre-Swirl Rotor-Stator Cavity (X. Yang, X. Li, Z. Ren, J. Ren, and P. M. Ligrani), International Journal of Thermal Sciences, Vol. 172, Part A, Paper No. 107271, pp. 1- 13, February 2022.
205. Measurement and Determination of Local Film Cooling Performance Along a Transonic Turbine Blade Tip With Viscous Dissipation (P. M. Ligrani, H. Collopy, and W. Manneschmidt), Measurement Science and Technology, Vol. 33, Paper No. 065302, pp. 1-28, March 2022.
206. Effects of Different Crash Data Variables on EMS Response Time for a Rural County in Alabama (S. R. Vanga, P. M. Ligrani, M. Doustmohammadi, and M. Anderson), Journal of Family Medicine and Primary Care, Vol. 11, No. 4, pp. 1462-1467, April 2022.
207. Flow and Heat Transfer in Swirl Tubes – A Review (F. Seibold, P. M. Ligrani, and B. Weigand), Invited Journal Paper, International Journal of Heat and Mass Transfer, Vol. 187, Paper No. 122455, pp. 1- 26, May 2022.
208. Effects of Tip Gap on Transonic Turbine Blade Heat Transfer Characteristics With Pressure Side Film Cooling (H. Collopy, P. M. Ligrani, H. Xu, and M. Fox), International Journal of Heat and Mass Transfer, Vol. 187, Paper No. 122513, pp. 1- 14, May 2022.
209. Celebration of Professor Bernhard Weigand On His 60th Birthday (X. Chu, G. Yang, A. Terzis, V. Vaikuntanathan, W. Wang, Z. Li, G. Lamanna, S. Fest-Santini, M. Santini, G. E. Cossali, P. M. Ligrani, B. A. Younis, M. Crawford, P. Ott, J. Kohler, C. Rohde, C.-D. Munz, R. Helmig, and T. Zhao), International Journal of Heat and Mass Transfer, Vol. 188, Paper No. 122626, pp. 1-2, June 2022.
210. Second Law Analysis of Aerodynamic Characteristics With Flow Temperature Variations of Simple Angle and Compound Angle Full Coverage Film Cooling (S. R. Vanga, and P. M. Ligrani), International Journal of Thermal Sciences, Vol. 176, Paper No. 107511, pp. 1-13, June 2022.
211. Experimental Study of Turbulent Flow Heat Transfer and Pressure Loss Over Surfaces With Dense Micro-Depth Dimples Under Viscous Sublayer (P. Zhang, Y. Rao, and P. M. Ligrani), International Journal of Thermal Sciences, Vol.177, Paper No. 107581, pp. 1-13, July 2022.
212. Transonic Turbine Blade Tip Heat Transfer With Pressure Side Film Cooling (H. Collopy, P. M. Ligrani, H. Xu, and M. Fox), AIAA Journal of Thermophysics and Heat Transfer, Vol. 36, No. 3, pp. 720–733, July 2022.
213. Dusting Hole Film Cooling Heat Transfer on a Transonic Turbine Blade Tip (W. Manneschmidt, H. Collopy, P. M. Ligrani, K. Goethals, M. Cox, H. Xu, and M. Fox), International Journal of Rotating Machinery, Volume 2022, Article ID 2006572, pp. 1-15, October 2022.
214. Effects of Pressure Side Film Cooling Hole Placement and Condition on Adiabatic Film Cooling Effectiveness Characteristics of a Transonic Turbine Blade Tip (H. Collopy, P. M. Ligrani, H. Xu, and M. Fox), International Journal of Heat and Mass Transfer, Vol. 199, Paper No. 123462, pp. 1-12, December 2022.

2023
215. Surface Film Cooling Characteristics of Rectangular Holes Along the Trailing Edge of a Transonic Turbine Blade Tip (M. Cox, H. Collopy, P. M. Ligrani, H. Xu, and M. Fox), International Journal of Thermal Sciences, Vol. 184, Paper No. 107920, pp. 1-11, February 2023.
216. Comparisons of Cooling Performance and Flow Characteristics of a Combustor Liner Plate With Compound Angle and Simple Angle Effusion Holes (H. Kwon, P. M. Ligrani, S. R. Vanga, and H. Park), International Journal of Thermal Sciences, Vol. 185, Paper No. 107984, pp. 1-20, March 2023.
217. Particulate Deposition Effects on Internal Swirl Cooling of Turbine Blades (X. Yang, Z. Hao, F. Seibold, Z. Feng, P. M. Ligrani, and B. Weigand), ASME Transactions – Journal of Engineering for Gas Turbines and Power, Vol. 145, No. 5, Paper No. 051020, pp. 1-13, May 2023.
218. Heat Transfer in Convergent Swirl Chambers for Cyclone Cooling in Turbine Blades (F. Seibold, P. M. Ligrani, X. Yang, R. Poser, and B. Weigand), Applied Thermal Engineering, Volume 230, Part B, Paper No. 120744, pp. 1-18, July 2023.
219. Statistical Analysis of Unsteady, Spatially-Varying Shock Wave Characteristics within a Supersonic Flow Environment (W. Manneschmidt, and P. M. Ligrani), International Journal of Statistics and Applications, Vol. 13, No. 1, pp. 13-19, July 2023.
220. Effects of Dusting Film Cooling Placement and Configuration on Surface Heat Transfer Characteristics of a Transonic Turbine Squealer Blade Tip (H. Collopy, P. M. Ligrani, W. Manneschmidt, H. Xu, and M. Fox), International Journal of Heat and Mass Transfer, Volume 212, Paper No. 124307 pp. 1-14, September 2023.
221, Relative Influences of Inertia and Polymeric Viscoelastic Effects on Nusselt Numbers within Rotating Couette Flows (P. M. Ligrani, V. Hietsch, and M. Su), Invited Journal Paper, Fluids, Special Issue: Non-Newtonian Flow: Interfacial and Bulk Phenomena (Editors: D. Andrew S. Rees, Amir H. Hirsa, and P. T. Underhill), Vol. 8, No. 1, pp. 258-273, September 2023.
222. Effects of Pressure Side Film Cooling Hole Placement and Condition on Surface Heat Transfer Coefficients Along a Transonic Turbine Blade Tip (H. Collopy, P. M. Ligrani, H. Xu, M. Fox), International Journal of Thermal Sciences, Volume 192, Part A, Paper No. 108399, pp. 1-14, October 2023.

2024
223. Conjugate Heat Transfer Evaluation of Turbine Blade Leading-Edge Swirl and Jet Impingement Cooling with Particulate Deposition (X. Yang, Z. Hao, Z. Feng, P. M. Ligrani, and B. Weigand), ASME Transactions – Journal of Turbomachinery, Vol. 146, No. 1, Paper No. 011003, pp. 1-16, January 2024.
224. Interrelationships of Entropy Production and Turbulence Kinetic Energy Associated With Simple Angle and Compound Angle Full Coverage Film Cooling (P. M. Ligrani, H. Kwon, and H, Park), International Journal of Thermal Sciences, Volume 197, Paper No. 108824, pp. 1-19, March 2024.
225. Effects of Blowing Ratio on Surface Heat Transfer Characteristics of a Transonic Turbine Squealer Blade Tip with a Double Plenum Film Cooling Supply Arrangement (G. Fulmer, P. M. Ligrani, H. Collopy, H. Xu, and M. Fox), International Journal of Heat and Mass Transfer, Volume 221, Paper No. 125043 pp. 1-15, April 2024.
226. Experimental and Numerical Investigation of Jet Impingement Cooling onto a Rib Roughened Concave Internal Passage for Leading Edge Cooling of a Gas Turbine Blade (M. Forster, P. M. Ligrani, B. Weigand, and R. Poser), International Journal of Heat and Mass Transfer, Volume 227, Paper No. 125572, pp. 1-15, August 2024.
227. Tip Gap Effects on Film Cooling Performance of a Transonic Turbine Blade With a Distinctive Coolant Supply Arrangement (P. M. Ligrani, H. Collopy, G. Fulmer, H. Xu, and M. Fox), International Journal of Heat and Mass Transfer, Volume 228, Paper No. 125667, pp. 1-10, August 2024.
228. Structural Margin Statistical Analysis: Effects of Reduction Factors and Statistical Noise on Performance Parameters (P. M. Ligrani, D. McDowell, S. L. Raghu, and L. D. Thomas), International Journal of Statistics and Applications, Vol. 14, No. 3, pp. 41-46, September 2024.
229. Normal Shock Wave Coherence Relative to Other Flow Events With High and Low Levels of Inlet Mach Wave Unsteadiness (W. Manneschmidt, P. M. Ligrani, M. Sorrell, A. M. Ciccarelli, and B. Weigand), Shock Waves, Vol. 34, pages 497–513, November 2024.

2025
230. Unsteady Relationships Between Instantaneous Surface Heat Flux, Instantaneous Surface Temperature, and Tracked Shock Wave Phenomena (M. Sorrell, W. Manneschmidt, and P. M. Ligrani), International Journal of Thermal Sciences, Vol. 208, Paper No. 109397, pp. 1-13, February 2025.
231. Consequences of Film Coolant Film Arrangement on Adiabatic Effectiveness of a Transonic Turbine Airfoil With Three Different Coolant Source Configurations (P. M. Ligrani, G. Fulmer, H. Xu, and M. Fox),), Heat Transfer Research, accepted for publication, to appear, 2025.
232. Quantification of Cooled Film Thermal Protection Using Net Heat Flux Reduction Within Transonic Environments (P. M. Ligrani, and N. Knox), Thermal Engineering, accepted for publication, to appear, 2025.
233. Heat Transfer and Aerodynamic Losses of Additively Manufactured Turbine Alloy Blades With Different Surface Enhancement Post-Processing (P. M. Ligrani, C. Bueschges, M. Tatge, B. Weigand, C. S. Subramanian, H. L. Collopy, Z. Taylor, J. Sheth,, and P. Gradl), International Journal of Thermal Sciences, accepted for publication, to appear 2025.
234. Rarefaction Slip Phenomena Within a Viscous Disk Pump With Molecular Mean Free Path Sized Surface Roughness Elements (P. M. Ligrani, A. Pippert, and B. Weigand), Microfluidics and Nanofluidics, accepted for publication, to appear 2025.
235.-239. Additional archival journal papers are under review for publication consideration within the journals International Journal of Thermal Sciences, AIAA Journal of Propulsion and Power, the International Journal of Heat and Mass Transfer, and Physics of Fluids.

BOOK CHAPTERS
1. Structure of Turbulent Boundary Layers (P. M. Ligrani), Aerodynamics and Compressible Flows, Encyclopedia of Fluid Mechanics (Editor: N. Cheremisinoff), Vol. 8, pp. 111-189, Gulf Publishing, October 1988.
2. Development and Structure of a Film-Cooling Jet in a Turbulent Boundary Layer with Heat Transfer (C. S. Subramanian, P. M. Ligrani, J. G. Green, W. D. Doner and P. Kaisuwan), Rotating Machinery Transport Phenomena, Proceedings of the Third International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-3), (Editors: J. H. Kim and W.-J. Yang), Hemisphere Publishing Corporation, pp. 53-68, March 1992.
3. Transient, Oscillatory and Steady Characteristics of Dean Vortex Pairs in a Curved Rectangular Channel (P. M. Ligrani), Ordered and Turbulent Patterns in Taylor-Couette Flow (Editors: C. David Andereck and F. Hayot) , NATO Advanced Science Institutes Series Volume, Series B: Physics Vol. 297, Plenum Press Publishing Corporation, pp. 281-288, October 1992.
4. Interactions Between Different Strength Vortices and Injectant Downstream of Film-Cooling Holes in a Turbulent Boundary Layer (P. M. Ligrani), Rotating Machinery Transport Phenomena, Proceedings of the Fourth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-4), (Editors: J. H. Kim and W.-J. Yang), Begell Publishing Corporation, Vol. 2, pp. 644-654, October 1993.
5. Effects of Curvature on Heat Transfer in Channels and Swirl Chambers (P. M. Ligrani), Recent Research Developments in Heat, Mass, & Momentum Transfer, Vol. 2-1999, (Editor: S. G. Pandalai), Research Signpost Publishers, Vol. 2, pp. 171-183, 1999.
6. Dimple Array Effects on Turbulent Heat Transfer and Flow Structure (P. M. Ligrani), Turbulence, Heat and Mass Transfer 5 (Editors: K. Hanjalic, Y. Nagano, S. Jakirlic), Begell House Inc., New York, Wallingford (UK), pp. 59-78, 2006.
7. Measurements of Surface Heat Transfer Characteristics Using Infrared Imaging (P. M. Ligrani), Springer Handbook of Experimental Fluid Mechanics (Editors: C. Tropea, A Yarin, J. Foss), Springer-Verlag Publishers, Part B, Chapter 7, Section 7.2, pp. 500-515, 2007.
8. Recent Developments in Impingement Array Cooling, Including Consideration of the Separate Effects of Mach Number, Reynolds Number, Temperature Ratio, Hole Spacing, and Jet-to-Target Plate Distance (P. M. Ligrani), Impingement Jet Cooling in Gas Turbines (Editors: R. S. Amano, B. Sunden), WIT Press, Southampton, United Kingdom, Chapter 3, pp. 63-102, 2014.
9. Full-Coverage Effusion Cooling in External Forced Convection: Sparse and Dense Hole Arrays (P. M. Ligrani), Handbook of Thermal Science and Engineering (Editor-in-Chief: Francis A. Kulacki), Springer International Publishing AG, Springer Publishing Corporation, New York, New York, USA. Chapter 10, pp. 425-446, 2018.
10. Recent Research Developments for Turbine Blade Tip Heat Transfer, Including Development and Effects of Tip Leakage Vortices (H. Collopy, M. Sampson, and P. M. Ligrani), AIP Conference Proceedings, HEAT AND MASS TRANSFER AND HYDRODYNAMICS IN SWIRLING FLOWS (HMTHSF-2019): Proceedings of the Seventh International Conference (Editors: Alexander I. Leontiev, Yuriy A. Kuzma-Kichta, Shota A. Piralishvili, Sergey V. Veretennikov and Oleg A. Evdokimov), Vol. 2211, Paper No. 020002, AIP Publishing, American Institute of Physics, Melville, New York, USA, March 2020.
11. Detection and Tracking of Hypersonic Vehicles (P. M. Ligrani, and R. McGinley), Hypersonic Flight – Past, Present, and Future (Author and Editor: Manfred Dutch von Ehrenfried), Kindle Direct Publishing, Amazon Publishing Company, Irvine, California, USA, August 2023.

CONFERENCE PUBLICATIONS AND PRESENTATIONS – LAST 8 YEARS
2018
133. Gas Turbine Component Heat Transfer and Cooling Research Directions (P. M. Ligrani), Panelist, “Gas Turbine Cooling and Aerodynamics” Panel, American Society of Thermal and Fluids Engineers (ASTFE) Conference, Fort Lauderdale, Florida, USA, March 4-7, 2018.
134. Double Wall Cooling of a Full Coverage Effusion Plate With Main Flow Pressure Gradient, Including Internal Impingement Array Cooling (S. R. Vanga, Z. Ren, A. J. Click, P. M. Ligrani, F. Liberatore, R. Patel, R. Srinivasan, and Y.-H. Ho), Paper Number GT2018-77036, ASME TURBO EXPO 2018: Turbomachinery Technical Conference and Exposition, Lillestrom, Oslo, Norway, June 11-15, 2018.
135. Double Wall Cooling of a Full Coverage Effusion Plate With Cross Flow Supply Cooling and Main Flow Pressure Gradient (C. Allgaier, Z. Ren, S. R. Vanga, P. M. Ligrani, F. Liberatore, R. Patel, R. Srinivasan, and Y.-H. Ho), Paper Number GT2018-77061, ASME TURBO EXPO 2018: Turbomachinery Technical Conference and Exposition, Lillestrom, Oslo, Norway, June 11-15, 2018.
136. Propulsion Research and Academic Programs at the University of Alabama in Huntsville – PRC Laboratory Capabilities – 2018 (R. Frederick, P. M. Ligrani, and L. D. Thomas), Paper Number AIAA 2018-4805, 2018 AIAA Propulsion and Energy Forum and Exposition, AIAA – American Institute of Aeronautics and Astronautics, Cincinnati, Ohio, USA, July 10-12, 2018.
137. Aerospace and Aeronautical Engineering at the University of Alabama in Huntsville (P. M. Ligrani), Plenary Lecture, 2018 ASE International Week, Forum of the Future of Aerospace Engineering, School of Aeronautic Science and Engineering (ASE), Beihang University, Beijing, P. R. China, September 12-14, 2018.
138. Heat Transfer Enhancements From Elastic Turbulence Within Rotating Couette Flow Using Sucrose-Based Polymer Solutions (P. M. Ligrani), Plenary Lecture, ICAYS – 2018 International Conference in Aerospace for Young Scientists, School of Aeronautic Science and Engineering (ASE), Beihang University, Beijing, P. R. China, September 15-16, 2018.
139. Investigations of Normal Shock Wave Unsteadiness (P. M. Ligrani), Invited Paper, First International Symposium on Advances in Aerodynamics, Chengdu, Sichuan Province, P. R. China, December 14-15, 2018.

2019
140. Linear Cascade and Wind Tunnel Development for Turbine Blade Tip Heat Transfer Investigations With and Without Film Cooling (M. Sampson, A. Fairbanks, J. Moseley, P. M. Ligrani, H. Xu, and M. Fox), Paper Number GT2019-91074, ASME TURBO EXPO 2019: Turbomachinery Technical Conference and Exposition, Phoenix, Arizona, USA, June 17-21, 2019.
141. Propulsion Research and Academic Programs at the University of Alabama in Huntsville – PRC Strategic Plan 2019 (L. D. Thomas, R. A. Frederick, and P. M. Ligrani), Paper Number AIAA 2019-3891, 2019 AIAA Propulsion and Energy Forum, AIAA – American Institute of Aeronautics and Astronautics, Indianapolis, Indiana, USA, August 19-22, 2019.
142. Double Wall Cooling of an Effusion Plate With Cross Flow and Impingement Jet Combination Internal Cooling: Comparisons of Main Flow Contraction Ratio Effects (D. Ritchie, A. J. Click, P. M. Ligrani, F. Liberatore, R. Patel, and Y.-H. Ho), Paper Number AIAA-2019-3967, 2019 AIAA Propulsion and Energy Forum, AIAA – American Institute of Aeronautics and Astronautics, Indianapolis, Indiana, USA, August 19-22, 2019.
143. Effects of Coolant Supply Arrangement on Double Wall Cooling: Hot-Side Effusion Performance and Cold-Side Nusselt Numbers at Different Initial Blowing Ratios (A. J. Click, D. Ritchie, P. M. Ligrani, F. Liberatore, R. Patel, and Y.-H. Ho), Paper Number AIAA 2019-3965, 2019 AIAA Propulsion and Energy Forum, AIAA – American Institute of Aeronautics and Astronautics, Indianapolis, Indiana, USA, August 19-22, 2019.
144. Recent Research Developments for Turbine Blade Tip Heat Transfer, Including Development and Effects of Tip Leakage Vortices (H. Collopy, M. Sampson, and P. M. Ligrani), Invited Plenary Keynote Paper, HMTHSF-2019, Seventh International Conference “Heat and Mass Transfer and Hydrodynamics in Swirling Flows,” National Committee on Heat and Mass Transfer of the Russian Academy of Sciences, Rybinsk, Russian Federation, October 16-18, 2019.
145. Academic and University Roles and Partnerships in the Development of Hypersonic Weapons (P. M. Ligrani), Invited Keynote Paper, 1st Annual Hypersonic Weapons Summit, 2019 Hypersonic Weapons Conference, IDGA – Institute for Defense and Government Advancement, Washington, D.C., USA, October 28-30, 2019.

2020
146. Physical Phenomena Associated With Hypersonic Weapon Vehicles (P. M. Ligrani), Invited Briefing Paper, 2nd Annual Hypersonic Weapons Summit, Digital Summit, 2020 Hypersonic Weapons Conference, IDGA – Institute for Defense and Government Advancement, Washington, D.C., USA, March 31-April 2, 2020.
147. Physical Phenomena Associated With Hypersonic Weapon Vehicles (P. M. Ligrani), Invited Briefing Paper, Hypersonic Weapon Systems, Digital Summit, IQPC, Defense iQ, London, England, United Kingdom, June 30-July 1, 2020.
148. Hypersonic Weapon Vehicles: Physical Effects and Phenomena (P. M. Ligrani), Invited Briefing Paper, Countermeasures Hypersonic Weapons Summit, Digital Summit, 2020 Hypersonic Weapons Conference, IDGA – Institute for Defense and Government Advancement, Washington, D.C., USA, July 23-24, 2020.
149. Propulsion Research and Academic Programs at the University of Alabama in Huntsville – PRC Graduate Student Production History (R. A. Frederick, L. D. Thomas, and P. M. Ligrani), Paper Number AIAA 2020-3909, AIAA Propulsion and Energy 2020 Forum, AIAA – American Institute of Aeronautics and Astronautics, Virtual Event, USA, August 24-26, 2020.
150. Louver Slot Cooling and Full-Coverage Film Cooling With a Combination Internal Coolant Supply (A. J. Click, P. M. Ligrani, M. Hockensmith, J. Knox, C. Larson, A. Fairbanks, F. Liberatore, R. Patel, and Y.-H. Ho), Paper Number GT2020-14520, ASME TURBO EXPO 2020: Turbomachinery Technical Conference and Exposition, Virtual Event, Virtual Online Conference, September 21-25, 2020.
151. Fostering Hypersonic Innovation Through Decisive Academic Research and Collaboration (P. M. Ligrani), Invited Briefing Paper, Hypersonic Weapons Summit, Digital Summit, 2020 2nd Annual Hypersonic Weapons Conference, IDGA – Institute for Defense and Government Advancement, Washington, D.C., USA, October 28-30, 2020.
152. R&D in Experimental Heat Transfer Diagnostics for Supersonic and Hypersonic Flow Environments (P. M. Ligrani), Invited Briefing Paper, Autonomous and Hypersonic Weapons Systems Conference, Technology Training Corporation (TTC), Washington, D.C., USA, November 4-6, 2020.

2021
153. Propulsion Research and Academic Programs at the University of Alabama in Huntsville – 30th Anniversary Summary (R. A. Frederick, P. M. Ligrani, and L. D. Thomas), Paper Number AIAA 2021-3347, AIAA Propulsion and Energy 2021 Forum, AIAA – American Institute of Aeronautics and Astronautics, USA, Virtual Event, August 9-11, 2021.
154. Topic AF19B-T012, Tailored Supersonic Flow Fields: Flow Shaping Technology to Enhance Test Rigs for Supersonic Inlets (M. Ostrander, S. Roth, and P. M. Ligrani), Propulsion-Airframe Integration Technical Interchange Meeting (PAI–TIM), Air Force / NASA / Industry / University Participation, Virtual Meeting, June 15-17, 2021.
155. Recent Investigations of Transonic, Supersonic, and Hypersonic Flow Phenomena (P. M. Ligrani), Invited Keynote Paper, 4th International Conference and Expo on Aerospace and Aeronautical Engineering (ICEAAE-2021, Aerospace-2021), Valencia, Spain, Virtual Event, October 25-27, 2021.
156. Conference Chairman, Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Arlington, Virginia, USA, November 2-3, 2021.
157. Surface Heat Transfer Characteristics of Transonic Turbine Blade Tip Configurations With and Without Film Cooling (P. M. Ligrani), Invited Keynote Paper, 2021 3rd International Conference on Mechanical, Aerospace and Automotive Engineering (CMAAE 2021), Sponsored by the Hong Kong Society of Robotics and Automation and the Central South University (P. R. China), Changsha, P. R. China, Online Event, December 3-5, 2021.

2022
158. Effects of Pressure Side Film Cooling Hole Placement and Condition on Surface Heat Transfer Characteristics of a Transonic Turbine Blade Tip (P. M. Ligrani), Invited Plenary Paper, Global Experts Conference on Applied Science, Engineering and Technology (GECAET-2022), Virtual Conference and Amsterdam, Netherlands, July 28-29, 2022.
159. Panel Member for Panel Session, “Applied Radiation Tracking for Defensive Hypersonic Weapons,” 2022 Hypersonic Weapons Summit, 4th Annual Hypersonic Weapons Summit, Institute for Defense and Government Advancement (IDGA) of the International Quality and Productivity Center (IQPC) (London, England, United Kingdom), Arlington, Virginia, USA, September 28-29, 2022.
160. Radiation Tracking Literature Overview (P. M. Ligrani), Invited Esteemed Speaker, 2022 Hypersonic Weapons Summit, 4th Annual Hypersonic Weapons Summit, Institute for Defense and Government Advancement (IDGA) of the International Quality and Productivity Center (IQPC) (London, England, United Kingdom), Arlington, Virginia, USA, September 28-29, 2022.
161. Conference Chairman, Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Huntsville, Alabama, USA, November 8-9, 2022.
162. Panel Moderator for Panel Session, “Testing and Simulation Developments for Hypersonics,” Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Huntsville, Alabama, USA, November 8-9, 2022.
163. Utilization of Electromagnetic Radiation for Detection, Tracking, and Characterization of Hypersonic Vehicles (P. M. Ligrani), Invited Paper, Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Huntsville, Alabama, USA, November 8-9, 2022.

2023
164. Effects of Dusting Film Cooling Placement and Configuration on Surface Heat Transfer Characteristics of a Transonic Turbine Squealer Blade Tip (H. Collopy, P. M. Ligrani, H. Xu, and M. Fox), Paper Number AIAA-2023-0883, 2023 AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum), American Institute of Aeronautics and Astronautics, Gaylord National Harbor Hotel, National Harbor, Maryland, USA, January 23-27, 2023.
165. Conference Chairman, Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Huntsville, Alabama, USA, November 7-8, 2023.
166. Panel Moderator for Panel Session, “Next Hypersonic Testing and Research Required,” Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Huntsville, Alabama, USA, November 7-8, 2023.
167. Recent Investigations of Transonic, Supersonic, and Hypersonic Flow Phenomena (P. M. Ligrani), Invited Plenary Paper, Third International Forum on Aerospace and Aeronautics (AEROFORUM 2023), San Diego, California, USA, December 11-13, 2023.
168. Conference Moderator, Third International Forum on Aerospace and Aeronautics (AEROFORUM 2023), San Diego, California, USA, December 11-13, 2023.

2024
169. Development of Innovative and Unique Pumping Concepts and Devices with Micro-, Millimeter-, and Macro-Scale Flow Passage Arrangements (P. M. Ligrani). Invited Plenary Lecture. Fluids Engineering Division Summer Meeting (FEDSM 2024), American Society of Mechanical Engineers (ASME), Anaheim, California, USA. July 15-17, 2024.
170. Investigation of Slip Flow Effects in a Micro-Channel Viscous Disk Pump Using DSMC (A. Appar, P. M. Ligrani, S. J. Poovathingal), 33rd International Symposium on Rarefied Gas Dynamics (RGD33), German Aerospace Center (DLR), Institute of Aerodynamics and Flow Technology Spacecraft Department – Göttingen, Germany, July 15-19, 2024.
171. Conference Chairman, Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Arlington, Virginia, USA, October 29-30, 2024.
172. Control of Shock Waves and Associated Flow Structure in Supersonic and Hypersonic Flow Environments (P. M. Ligrani), Invited Lecture. Hypersonic Defense Conference and Exhibition, Intelligence-SEC (Buckinghamshire, England, United Kingdom), Arlington, Virginia, USA, October 29-30, 2024.

2025
173. Coherent Interactions Between Test Section Inlet Unsteadiness, Surface Temperature Fluctuations, and Shock Wave Phenomena with Different Levels of Inlet Turbulence Intensity (W, Manneschmidt, and P. M. Ligrani), Paper Number AIAA-2025, 2025 AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum), American Institute of Aeronautics and Astronautics, Hyatt Regency Orlando, Orlando, FL, USA, January 6-10, 2025.
174. Tip Gap Effects on Film Cooling Heat Transfer Coefficients Along a Transonic Turbine Blade with a Distinctive Coolant Supply Arrangement (P. M. Ligrani, H. Collopy, G. Fulmer, H. Xu, and M. Fox), Paper Number AIAA-2025, 2025 AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum), American Institute of Aeronautics and Astronautics, Hyatt Regency Orlando, Orlando, FL, USA, January 6-10, 2025.
175. Propulsion Research and Academic Programs at the University of Alabama in Huntsville – Research Review (R. A. Frederick, L. D. Thomas, and P. M. Ligrani), Paper Number AIAA-2025, 2025 AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum), American Institute of Aeronautics and Astronautics, Hyatt Regency Orlando, Orlando, FL, USA, January 6-10, 2025.
176. Design, Development, and Performance of Innovative Micro-Scale, Millimeter-Scale, and Macro-Scale Pumping Devices (P. M. Ligrani). Invited Keynote Lecture. Fluid Applications and Systems Technical Committee (FASTC), Fluids Engineering Division Summer Meeting (FEDSM 2025), American Society of Mechanical Engineers (ASME), Philadelphia, Pennsylvania, USA. July 27-30, 2025.
177. Vortex Development and Quantification Within Complex Mechanical and Aerospace Engineering Flow Environments (P. M. Ligrani). Invited Lecture. VORTEX2025 International Conference – Toward World Consensus on Vortex Definition and Prediction, National Science Foundation and the University of Texas at Arlington, Arlington, Texas, USA. December 13-16, 2025.