Sloshing Analysis of Flowing Liquid in 3D Tank Using Boundary Elements Method

Author:

Firouz-Abadi R. D.1,Borhan-Panah M. R.2

Affiliation:

1. Assistant Professor e-mail:

2. e-mail:  Department of Aerospace Engineering, Sharif University of Technology, Tehran 11155-8639, Iran

Abstract

A numerical model based on the boundary element method is proposed for the sloshing of a flowing liquid in a three-dimensional tank. Assuming a mean flow in the tank in addition to a perturbation flow, the nonlinear boundary conditions of the liquid free-surface are linearized. Using the boundary element method along with the modal analysis technique a reduced order model is obtained which is used to calculate the fundamental sloshing frequencies and modes in the tank with an inlet and outlet. The obtained results for a test case are compared with the literature data to validate the proposed model. The results are in a very good agreement with analytical results and show an acceptable comparison with experimental data. Then a rectangular tank is provided for further studies and the effects of flow inlet position and velocity on the sloshing frequencies and modes are investigated.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference20 articles.

1. Flow Pattern and Self-Induced Oscillation in a Thin Rectangular Tank With Free Surface;J. Fac. Eng., Univ. Tokyo,1993

2. Analysis on the Self-Induced Sloshing Using Particle Image Velocimetry,2004

3. Self-Induced Oscillation of Upward Round Jet Impinging on Free Surface (2nd Report, Energy Supply Mechanism);Nihon Kikai Gakkai Ronbunshu, B Hen/Trans. Jpn. Soc. Mech. Eng., Part B,1999

4. Self-Induced Sloshing Caused by an Upward Round Jet Impinging on the Free Surface;J. Fluids Struct.,2002

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