Cooling of the Endwall Separation Region Upstream of Obstacles

本文描述了钝体附近表面强制对流换热的实验研究。这种情况发生，例如，在燃气轮机翼型涡轮叶片附加到他们的基础表面。速度分布的测量将作为传热测量的补充。在某些实验中，会在叶片表面附着区域注入一层空气。薄膜保护表面不受通过涡轮的热气体的影响。这项工作的预期最终结果是为燃气轮机设计师提供一套指导方针，以尽量减少热气体对表面的加热。

This proposal describes an experimental study of the forced convection heat transfer on a surface in the neighborhood of a blunt body. Such situations occur, for example, in gas turbines where the airfoil-like turbine blades attach to their base surface. The velocity distribution will be measured as a supplement to the heat transfer measurements. In certain of the experiments, a film of air will be injected in the blade- surface attachment region. The film protects the surface from the hot gases passing through the turbine. The expected end result of the work is a set of guidelines for gas turbine designers for minimizing the heating of the surface by the hot gases.