Investigation on Influence of Launch Depth to the Hydrodynamic Characteristics of the Cylinder out of the Tube
The influence of different the depth to the hydrodynamic characteristics of the underwater cylinder vertical launch out of the tube was researched with numerical simulation. The finite volume method based on the multiphase model, continuity equation, transport equations of liquid mass fraction,a dynamic mesh technique and a standard k~e tow-turbulence model are adopted to solve RANS equation in conjunction. The fluid-solid coupling problem of both movement boundary of the cylinder and multiphase flow field was solved by using numerical method. Under the influence of the gravity, the flow field affected the hydrodynamic characteristics of the cylinder was derived with the numerical simulation. Simulation results show that different launch depths affect on the trajectory of underwater cylinder and hydrodynamic. The fluctuation reasons of different pressure drag coefficient, viscous drag resistance coefficient and toll resistance coefficient were derived by analyzing simulation results.
Vertical launch Underwater cylinder Multiphase flow Hydrodynamic characteristics Partial cavitation
Haijun LIU Xingzhi PENG Cong WANG Benli WANG
School of Astronautics, Harbin Institute of Technology University, Harbin 150001, China College of Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003,China
国际会议
2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)
广州
英文
2261-2264
2011-11-18（万方平台首次上网日期，不代表论文的发表时间）