Characteristics Of Liquid Sloshing Research Articles

Sloshing in a three-dimensional rectangular tank: Numerical simulation and experimental validation

Pressure variations and three-dimensional effects on liquid sloshing loads in a moving partially filled rectangular tank have been carried out numerically and experimentally. A numerical algorithm based on the volume of fluid (VOF) technique is used to study the non-linear behavior and damping characteristics of liquid sloshing. A moving coordinate system is used to include the non-linearity and avoid the complex boundary conditions of moving walls. The numerical model solves the complete Navier–Stokes equations in primitive variables by using of the finite difference approximations. In order to mitigate a series of discrete impacts, the signal computed is averaged over several time steps. In order to assess the accuracy of the method used, computations are compared with the experimental results. Several configurations of both baffled and unbaffled tanks are studied. Comparisons show good agreement for both impact and non- impact type slosh loads in the cases investigated.

Finite element analysis of resonant sloshing response in 2-D baffled tank

This paper is concerned with the numerical analysis of the resonance characteristics of liquid sloshing in a 2-D baffled tank subjected to the forced lateral excitation. Sloshing flow is formulated based on the linearized potential flow theory, while an artificial damping term is employed into the kinematic free-surface condition to reflect the eminent dissipation effect in resonant sloshing. A test FEM program is developed for the resonant sloshing analysis in frequency domain. The choice of the artificial damping coefficient is parametrically examined and the numerical accuracy is verified through the comparison with the available analytic solutions. Through the numerical analysis of sloshing frequency response with respect to the number, location and opening width of baffle, the sloshing damping characteristics by the baffle are parametrically investigated.

Experimental investigation of pressure distribution on a rectangular tank due to the liquid sloshing

Pressure variations and 3D effects on liquid sloshing loads in tanks have been carried out experimentally. Recently, considerable advances have been made in the development of numerical techniques for studying the liquid sloshing on large structures. However, there is a lack of high quality experimental data that may be used for validating the analytical and numerical solutions obtained. This paper describes the results of the research project conducted at the Hydroulics Laboratory of Civil Engineering Faculty of Istanbul Technical University. The primary objective of the project is to investigate the pressure distributions at different locations and 3D effects on liquid sloshing. In this purpose, an experimental setup is designed to study the non-linear behavior and damping characteristics of liquid sloshing in partially filled 3D rectangular tank. Both several configurations of baffled and unbaffled tanks are studied.