This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Turbine Blade Heat Transfer Prediction Using Coupled Turbulent Prandtl Number and Transition Models
Annotation ability available
Sector:
Language:
English
Abstract
A study was undertaken to improve the prediction of heat transfer coefficients on the suction surface of turbine blades. The study specifically investigated the effects of coupling turbulent Prandtl number models with boundary layer transition models. A two-dimensional boundary layer code, STAN5, was selected and the turbulence model modified by incorporating several turbulent Prandtl number and boundary layer transition models found in the literature. Results indicated that subtle effects were attributable to the modified turbulence model. However, desired improvements were not obtained in the heat transfer coefficient predictions. It appears that boundary layer transition models predicting natural transition are not appropriate for use in a turbine blade flow field.
Authors
Citation
Whitaker, K., "Turbine Blade Heat Transfer Prediction Using Coupled Turbulent Prandtl Number and Transition Models," SAE Technical Paper 912152, 1991, https://doi.org/10.4271/912152.Also In
References
- Whitaker, K. W. “The Role of the Turbulent Prandtl Number in Turbine Blade Heat Transfer Prediction,” SAE Paper No. 901810 1990
- Crawford, M.E. Kays, W.M. “STAN5 - A Program for Numerical Computation of Two-Dimensional Internal and External Boundary Layer Flow,” NASA CR-2742 1976
- Gaugler, R.E. “Some Modifications to, and Operational Experiences with, the Two-Dimensional, Finite-Difference, Boundary Layer Code STAN5,” ASME Paper No. 81-GT-89 1984
- Patankar, S.V. Spalding, D.B. “A Finite-Difference Procedure for Solving the Equations of the Two-Dimensional Boundary Layer,” International Journal of Heat and Mass Transfer 10 1967 1389
- Hylton, L.D. Mihelc, M.S. Turner, E.R. Neary, D.A. York, R.E. “Analytical and Experimental Evaluation of the Heat Transfer Distribution Over the Surfaces of Turbine Vanes,” NASA CR-168015 1983
- Jenkins, R. “Variation of the Eddy Conductivity with Prandtl Modulus and its Use in the Prediction of Turbulent Heat Transfer Coefficients,” Proceedings of the Heat Transfer and Fluid Mechanics Institute 1951 147
- Thomas, L.C. “Temperature Profiles for Liquid Metals and Moderate Prandtl Number Fluids,” Journal of Heat Transfer 92 1970 565
- Cebeci, T. “A Model for Eddy Conductivity and Turbulent Prandtl Number,” Journal of Heat Transfer 95C 1973 227
- Tyldesley, J.R. Silver, R.S. “The Prediction of the Transport Properties, of a Turbulent Fluid,” International Journal of Heat and Mass Transfer 11 1968 1325
- Seyb, N.J. “The Role of Boundary Layers in Axial Flow Turbomachines and the Prediction of Their Effects,” AGARD-AG-164 1972 241
- Dunham, J. “Predictions of Boundary Layer Transition on Turbomachinery Blades,” AGARD-AG-164 1972
- Abu-Ghannam, B.J. Shaw, R. “Natural Transition of Boundary Layers - The Effects of Turbulence, Pressure Gradient, and Flow History,” Journal of Mechanical Engineering Sciences 22 1980 213
- Van Driest, E.R. Blumer, C.B. “Boundary Layer Transition: Free-stream Turbulence and Pressure Gradient Effects,” AIAA Journal 1 1963 1301
- Chen, K.K. Thyson, N.A. “Extension of Emmons' Spot Theory to Flows on Blunt Bodies,” AIAA Journal 9 1971 812
- Dhawan, S. Narashima, R. “Some Properties of Boundary Layer Flow During Transition From Laminar to Turbulent Motion,” Journal óf Fluid Mechanics 3 1958 418