A study on formulation and numerical analysis of the flow field of a submerged water jet.

在分析淹没射流空化特性时，不能忽略液体的可压缩性。然而，一个附加的惯性力方程，这是缺席的压缩性已被用于传统的平均方程的基础上的双流体模型。在本研究中，采用了附加的惯性力方程，其中考虑了压缩性，然后揭示了压缩性不影响以往的分析结果在线性问题的范围内。并对一个单相液体的传热问题进行了数值模拟，验证了计算方法和计算结果的正确性。

When we analyze the cavitation behavior in a submerged water jet, the compressibility of a liquid should not be omitted. However, an added inertia force equation which is absent from that compressibility has been used in the conventional averaged equations based on a two-fluid model. In this study, the added inertial force equation where the compressibility was considered was adopted, and then it was revealed that the compressibility does not affect the past analytical results in the range of linear problem. And furthermore, the numerical simulation of a heat transfer problem in the liquid single phase was performed, and the validities of the computation method and results were confirmed.