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基于轴对称非定常可压缩N-S方程和VOF两相流模型,对水下固体发动机尾流场进行了数值仿真。结果较好地预示了尾流场燃气泡生长过程,得到了水下发动机工作初期尾流场形态及其演化过程。对发动机在水下和地面两种工况下的性能进行了对比。
Based on the axisymmetric unsteady compressible N-S equation and the VOF two-phase flow model, the numerical simulation of underwater wake flow field is carried out. The results better predict the bubble growth process of the wake field and obtain the wake wake field morphology and evolution during the initial stage of underwater engine operation. The engine performance under water and ground conditions were compared.