Advection by Compressible Turbulence

9221630奥布莱恩 一个模型是要开发来预测的标量属性（无论是化学物种或热）在可压缩流体是湍流的运输。 该模型是基于涡阻尼准正常模型已开发的不可压缩湍流，即没有显着的密度波动。 这些都不包括在一般化的模式。 一个平行的努力将是一个直接的数值模拟计划的发展，用于校准和验证新的模型。 压缩性效应将是中等的，预定的状态是直到马赫数约为0.70。 可压缩湍流以及由这种湍流引起的输运在高速到达流中是重要的。 典型的模型应用将是燃烧和推进系统。 ***

9221630 O'Brien A model is to be developed to predict the transport of a scalar property (either chemical species or heat) in a compressible fluid which is turbulent. The model is based on the Eddy Damped Quasi Normal model which has been developed for incompressible turbulence, that is, without significant density fluctuations. These are not to be included by generalizing the model. A parallel effort will be the development of a Direct Numerical Simulation scheme to be used to calibrate and validate the new model. Compressibility effects will be moderate, the intended regime being up to a Mach number of about 0.70. Compressible turbulence, and transport by such turbulence, is important in high speed reaching flows. Typical model application would be to combustion and propulsion systems. ***