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对射流喷管内/外流场进行了数值计算。数值解法由未分裂显式马考马克有限差分格式完成,应用时间光滑处理、快速解法及局部子循环法提高高雷诺数流动的计算效率。所有的边界条件使用参考平面特征格式计算,将粘性项作为源项处理。
The inner / outer flow field of jet nozzle is numerically calculated. The numerical solution is completed by the unsplit Explicit Markov Finite Difference Scheme. The computational efficiency of high Reynolds number flow is improved by time smoothing, fast solution and local sub-circulation method. All boundary conditions are calculated using the reference plane feature format and the sticky item is treated as the source item.