Study on Dynamic Characteristics of Longitudinal Sloshing in Liquid Tank Semi-trailer

Based on the purpose of ensuring the safety of liquid tank semi-trailer, the dynamic characteristics of liquid in the tank truck have been studied. The liquid sloshing in the tank is simulated by the Volume of Fluid method of multiphase flow and k-epsilon turbulent model, and analyzes the effect of the initial velocity, deceleration and filling rate on the tank truck. The results show that, the initial velocity, deceleration and filling rate in the tank all produce different forces and torques to the tank, which affect the driving stability of the tank. If the deceleration and filling rate are constant, the initial velocity will have less influence on the longitudinal stability of the tank. However, when the deceleration increases, the longitudinal stability decreases. Meanwhile, if the filling rate is more than 0.8, the effective deceleration will be the lowest and the longitudinal stability is poor. What is the most important is that the method of this paper is feasible, which provides references for driving and supervising tank truck.