Cooling of the Endwall Separation Region Upstream of Obstacles

这项建议描述了一项实验研究， 对流换热的表面附近的一个 钝体 例如，在气体中， 翼型状的涡轮机叶片连接到它们的 基面 速度分布将被测量为 补充传热测量。 在某些 在实验中，一层空气将被注入叶片中， 表面附着区。 薄膜保护表面免受 热气通过涡轮机。 预期的结局 研究结果为燃气涡轮机设计提供了一套指导原则 设计师为尽量减少加热的表面由热 气.

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.