CAJ | 학술논문

针对航行体排气水下发射流体动力问题，采用VOF（Volume of Fluid）多相流模型、标准湍流模型，结合动网格技术，进行发射过程流场数值仿真，获得了航行体表面压力分布及气泡的发展过程，计算结果与试验结果吻合较好；利用形成的数值方法，研究了发射深度、出筒速度对排气气泡发展过程的影响，获得了对工程设计具有参考价值的结论。
침대항행체배기수하발사류체동력문제，채용VOF（Volume of Fluid）다상류모형、표준단류모형，결합동망격기술，진행발사과정류장수치방진，획득료항행체표면압력분포급기포적발전과정，계산결과여시험결과문합교호；이용형성적수치방법，연구료발사심도、출통속도대배기기포발전과정적영향，획득료대공정설계구유삼고개치적결론。
Aiming at issues concerning the flow dynamics of underwater vehicle launching with exhaust, the numerical simulation on the flow field of underwater launching process was established. Combining VOF multiphase flow model, the standard turbulence model,and the technique of dynamic mesh, characteristics of the distribution of pressure on the vehicle's surface and the forming process of exhausting bubble were obtained and the numerical result agreed well with those in experiments. The influence of depth of launch and velocity outside tube on the forming process of bubble is numerically studied and some conclusions are achieved which have important reference value to engineering application.