CAJ | 학술논문

针对回转体垂直入水流体动力问题，基于RANS方程、VOF多相流模型和动网格技术进行数值模拟分析，通过试验结果对数值计算模型进行验证，获得垂直入水过程中自由液面及物体表面附着空气泡的发展演化过程，研究回转体不同入水速度对流体动力分布特性的影响，为工程设计提供借鉴与参考。
침대회전체수직입수류체동력문제，기우RANS방정、VOF다상류모형화동망격기술진행수치모의분석，통과시험결과대수치계산모형진행험증，획득수직입수과정중자유액면급물체표면부착공기포적발전연화과정，연구회전체불동입수속도대류체동력분포특성적영향，위공정설계제공차감여삼고。
The numerical simulation of water entry of an axisymmetric body is based on solving the time dependent Reynolds-Averaged Navier-Stokes equations and the VOF multiphase method and the dynamic mesh technique. Numerical results compared favorably with the experimental data show that the numerical method in this paper is able to capture the pressure evolution in the vertical water entry cavity properly, and the hydrodynamic distributions in cavity with various entry speeds are discussed. The study may provide reference and contribute to the engineering design.