Studies of heat transfer on the base of turbine nozzles with and without film cooling
Abstract
The severity of the aerothermal environment of high-pressure nozzles in modern engines requires base cooling using techniques similar to those used for guide vanes, i.e., convection, films etc. These experiments measure the exchange coefficients for several bases of different configurations, and which show variations in the film cooling structure; measurement of the characteristics of the flow in the vicinity of the wall is also done. This document presents the analysis of the results obtained, compared with the predicted results. The correlations deduced from this analysis show a general method of determining the thermal transfer coefficients for air injection cooling.
- Publication:
-
In AGARD Heat Transfer and Cooling in Gas Turbines 9 p (SEE N86-29823 21-07
- Pub Date:
- September 1985
- Bibcode:
- 1985htcg.agarQ....B
- Keywords:
-
- Film Cooling;
- Gas Injection;
- Gas Turbines;
- Heat Transfer;
- Nozzles;
- Heat Transfer Coefficients;
- Mach Number;
- Secondary Flow;
- Wall Flow;
- Fluid Mechanics and Heat Transfer