Numerical study of liquid cooling gas turbine blade
Abstract
The paper presents a computer simulation of heat transfer mechanisms in a liquid-cooled gas turbine, including convective heat transfer between the hot gas and the turbine blade surface, conductive heat transfer through the blade, and convective heat transfer between the wall of the coolant hole and the coolant. For the computation of the turbulent flow, a hybrid method of central and upwind finite differencing is used with the standard turbulence model. The results of these computations display better agreement with experimental data of May (1965) than those based on analytic solutions. The results indicate that effects of free stream turbulence are greater on the suction side, characterized by a strong favorable pressure gradient, than on the pressure side.
- Publication:
-
American Society of Mechanical Engineers
- Pub Date:
- April 1982
- Bibcode:
- 1982gatu.confQ....A
- Keywords:
-
- Computational Fluid Dynamics;
- Convective Heat Transfer;
- Gas Turbines;
- Turbine Blades;
- Turbulent Flow;
- Finite Difference Theory;
- Free Flow;
- Liquid Cooling;
- Turbulence Models;
- Fluid Mechanics and Heat Transfer