In this paper, flow fields of a nozzle and its plume are computed with Mao Cormark time-dependent method. Baldwin-Lomax turbulence model and Reynolds-averaged Naver-Stokes equations as well as adaptive grid technique are apllied to the computation.

• 利用时间推进的方法，通过求解可压缩的、雷诺平均的N－S方程，并利用Baldwin－Lomax两层代数湍流模型和Prandtl混合长度模型，数值模拟了飞机和火箭发动机喷管的内流和羽流，获得了喷管内流场和羽流场的参数分布，计算结果与试验结果及国外研究成果一致。