Numerical Simulation of Free Surface Collapse in Propellant Tank
In liquid propellant rocket the propellant tank is partly filled with liquid propellant,which represents a kind of free surface flow.During the transportation process of the liquid propellant the gas suction may lead to danger for the rocket engine.Moreover the collapse of the free surface between the gas and liquid is forbidden from the rockets safety view.Therefore anti-collapse device design is necessary for the liquid propellant tank.In this paper the flee-surface fluid flow in the propellant was simulated by using a volume of fluid (VOF) model with an unsplit Lagrangian advection scheme based on finite volume method (FVM).The collapse phenomenon of the free surface was captured by the numerical simulation.The simulation was conducted on a prototype tank including the influences of overweight,weightlessness and tank sloshing.After simulation the characteristics of the flow field were shown when the free surface collapses.Then the reasons of the collapse of the free surface were discussed,which can provide instructions to the design of the anti-collapse devices for propellant tank.
propellant tank free-surface flow collapse volume of fluid
W.YANG Y.-L.WU
College of water resources & civil engineering, China Agricultural University,Beijing, China100083 Laboratory of hydraulic science and engineering, Tsinghua University, Beijing,China100084
国际会议
Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)
上海
英文
419-422
2013-08-01（万方平台首次上网日期，不代表论文的发表时间）