Investigations of Full-Coverage Film Cooling

CONSIDERATION OF: Reynolds Number, Hole Spacing, Contraction Ratio, Blowing Ratio

Spatially-resolved surface adiabatic effectiveness for hole spacing X/D=18, Y/D=5, contraction ratio Cr=4, and hole inclination angle α=20º, for blowing ratios BR of (a) 5.0, (b) 2.0, and (c) 10.0.

Full-coverage film cooling flow facility.

Blowing ratio variation with x/D for different contraction ratios, calculated on the basis of static pressure ratios.

Full Coverage Film Cooling REFERENCES

1. Full-Coverage Film Cooling: Film Effectiveness and Heat Transfer Coefficients for Dense and Sparse Hole Arrays at Different Blowing Ratios (P. M. Ligrani, M. Goodro, M. Fox, and H.-K. Moon), ASME Transactions-Journal of Turbomachinery, Vol. 134, No. 6, pp. 061039-1 to 061039-13, November 2012.

2. Full-Coverage Film Cooling: Film Effectiveness and Heat Transfer Coefficients For Dense Hole Arrays at Different Hole Angles, Contraction Ratios, and Blowing Ratios (P. M. Ligrani, M. Goodro, M. Fox, and H.-K. Moon), ASME Transactions-Journal of Heat Transfer, Vol. 135, No. 3, pp. 031707-1 to 031707-14, March 2013.

3. Full-Coverage Film Cooling: Heat Transfer Coefficients and Film Effectiveness For a Sparse Hole Array at Different Blowing Ratios and Contraction Ratios (P. M. Ligrani, M. Goodro, M. Fox, and H.-K. Moon), ASME Transactions-Journal of Heat Transfer, submitted to be considered for publication, 2013.

4. Full-Coverage Film Cooling: Film Effectiveness and Heat Transfer Coefficients for Dense and Sparse Hole Arrays at Different Blowing Ratios (M. Goodro, P. M. Ligrani, M. Fox, and H.-K. Moon), Paper Number GT2011-45389, TURBO EXPO 2011 – 56th TURBO EXPO Turbine Technical Conference and Exposition, Vancouver, Canada, June 6-10, 2011.

5. Full-Coverage Film Cooling: Film Effectiveness and Heat Transfer Coefficients For Dense Hole Arrays at Different Hole Angles, Contraction Ratios, and Blowing Ratios (M. Goodro, P. M. Ligrani, M. Fox, and H.-K. Moon), Paper Number GT2012-70014, TURBO EXPO 2012 – 57th TURBO EXPO Turbine Technical Conference and Exposition, Copenhagen, Denmark, June 11-15, 2012.

6. Full-Coverage Film Cooling: Heat Transfer Coefficients and Film Effectiveness For a Sparse Hole Array at Different Blowing Ratios and Contraction Ratios, (P. M. Ligrani, M. Goodro, M. Fox, and H.-K. Moon), Paper Number GT2013-94649, TURBO EXPO 2013 – 58th TURBO EXPO Turbine Technical Conference and Exposition, San Antonio, Texas, USA, June 3-7, 2013.

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