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首页> 外文会议>31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit July 10-12, 1995/San Diego, CA >Application of an adaptive GRID scheme for NPARC
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Application of an adaptive GRID scheme for NPARC

机译：自适应GRID方案在NPARC中的应用。

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摘要

An adaptive grid scheme for the solution of the Navier-Stokes equations for compressible flows in one-, two- and three- dimensions has been developed and is presented in this paper. The grid adaptation is implemented by redistributing the grid from an elliptic grid generator. The flow field and grid are solved simultaneously. The source term of the grid generator contains a characteric physcial quantity obtained by the flow solve NPARC for two- and three-dimensions. The algorithm can be used to compute both steady state and time-dependent flow solutions. Unsteady flow in an one-dimenional shock tube is computed and the results are compared with analytical solution. Good agreement is observed. Steady state solutions of a two-dimensional flow inside a rocket nozzle with shcok waves and a three-dimensional supersonic flow over an idealized airplane cockpit are presented for the demonstration of the scheme feasibility in higher dimensions.
机译：本文针对一维，二维和三维可压缩流的Navier-Stokes方程求解提出了一种自适应网格方案，并在本文中进行了介绍。通过从椭圆形网格生成器重新分配网格，可以实现网格自适应。流场和网格同时求解。网格生成器的源项包含二维和三维流求解NPARC获得的特征物理量。该算法可用于计算稳态和时变流解。计算一维激波管中的非定常流动，并将其结果与解析解进行比较。观察到良好的一致性。提出了带有shcok波的火箭喷嘴内的二维流和理想化飞机驾驶舱上的三维超声速流的稳态解，以证明该方案在更高维度上的可行性。

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