Numerical analysis of influencing factors on sloshing of
oil liquid in automobile fuel tank
1. School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. School of Mechanical Engineering, Inner Mongolia University of Science ＆ Technology, Baotou, Inner Mongolia 014010, China
Abstract：When the automobile works under variable conditions，the large amplitude sloshing of oil liquid in fuel tank can lead to vibration noise, increasing evaporative emission and stopping supplying fuel at high speed. To investigate the law of oil liquid sloshing in fuel tank, the 3D finite element model of tank filled with oil liquid was established. The effects of tank arrangement way, filling amount, tank shape, acceleration, keeping acceleration time and tank pressure on oil liquid sloshing were simulated respectively, and the position diagram, the dynamic pressure curve of designated oil liquid position and the total pressure curve of designated point were obtained by volume of fluid (VOF) method. The simulation results show that the major influencing factors on oil liquid sloshing are filling amount, fuel tank shape, keeping acceleration time and acceleration, which are the primary factors of dynamic pressure of oil liquid sloshing, pressure fluctuation, impact force of gravity potential energy and the maximum pressure value, respectively.
2018, Vol. 39 
