Engineering Initiation Award: Effects of Curvature, Pressure, Gradient, and Freestream Turbulence on Reynolds Analogy in Transitional Boundary Layer Flow

一个典型的叶片表面的50- 80%， 燃气涡轮机被经历从 层流状态到湍流状态。 的不足 目前用于预测表面传热的模型 燃气涡轮机叶片可以追溯到目前无法 预测转变的开始并模拟能量 边界层中的输运经历过渡。 的 拟议的研究将通过实验研究对 以下三个参数的过渡：（a）自由度 湍流强度，（B）表面曲率，以及（c）流向 压力梯度

As much as 50-80 percent of the surface of a typical blade of a gas turbine is covered by flow undergoing transition from the laminar regime to the turbulent regime. The insufficiency of current models for predicting heat transfer at the surface of gas turbine blades can be traced to the present inability to predict the onset of transition and to model the energy transport in a boundary layer undergoing transition. The proposed research will experimentally investigate the effect on transition of the following three parameters: (a) freestream turbulence intensity, (b) surface curvature, and (c) streamwise pressure gradient.