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SOME STUDIES ON THREE DIMENSIONAL TURBULENT BOUNDARY LAYER FLOWS

机译:三维湍流边界层流的若干研究

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This paper describes some studies on flow separation and on the extended Cebeci-Smith turbulence and transition models, carried out using a three-dimensional turbulent boundary layer code developed at the Vikram Sarabhai Space Center (VSSC), Thiruvananthapuram, India. This code uses an orthogonal curvilinear surface fitted co-ordinate system. The governing equations are solved, by an implicit space marching numerical method called the Keller Box Scheme with suitable modifications for reverse crossflows. Initial data on two intersecting planes for starting the solution procedure, are obtained by solving the appropriate limiting form of the governing equations. Three transition models available in the literature are studied. A few sample results are presented and compared with experimental measurements.
机译:本文描述了一些关于流动分离以及扩展的Cebeci-Smith湍流和过渡模型的研究,这些研究是使用印度提卢湾安塔普兰Vikram Sarabhai航天中心(VSSC)开发的三维湍流边界层代码进行的。该代码使用正交曲线曲面拟合坐标系。控制方程是通过一种称为Keller Box Scheme的隐式空间行进数值方法求解的,并对其进行了适当的修改以解决逆流问题。通过求解控制方程式的适当限制形式,获得了两个相交平面上的初始数据,用于启动求解过程。研究了文献中可用的三种过渡模型。介绍了一些样本结果,并将其与实验测量结果进行了比较。

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