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本文用数值方法对二元喷管的三维粘性流场进行模拟 ,将 Mac Cormack有限差分格式拓广到全三维 N- S方程的求解。在数值迭代中使用加快收敛速度的当地时间步长 ,并根据格式压缩计算机存储量和计算量。进行了两个算例的数值模拟 ,计算结果与实验相符。
In this paper, we simulate the 3D viscous flow field of a binary nozzle numerically and extend the Maccormack finite difference scheme to the full three-dimensional N-S equation. Use local time steps to speed up convergence in numeric iterations and compress computer storage and computations based on format. The numerical simulations of two examples are carried out. The calculated results agree well with the experimental results.