Numerical Study of Cavitation and Bubble Growth Using a High Density Ratio Pseudo-potential Lattice Boltzmann Method

Banerjee, Raja and Saritha, G (2015) Numerical Study of Cavitation and Bubble Growth Using a High Density Ratio Pseudo-potential Lattice Boltzmann Method. ISME Journal of Thermofluids, 3 (1).

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Abstract

In this paper the pseudo-potential model is coupled with Peng-Robinson equation of state and exact difference method (EDM) forcing scheme to simulate cavitation and shear of a bubble in a quiescent flow. The model is validated as being suitable to simulate large density ratio fluids. A numerical study has been performed using Multiphase Lattice Boltzmann Method to understand the bubble dynamics in flows involving cavitation using Shan & Chen (SCEOS) and Peng-Robinson equations of state (PREOS) in simulating bubble growth in a quiescent flow. Furthermore bubble growth with the different shear rates is studied at a density ratio approximately equal to 200 using PREOS. An attempt has been made to study a bubble growth behaviour when placed in different locations of the domain. The results show that bubble growth rate is consistent with the theoretical studies and agree well with Rayleigh–Plesset equation which predicts the spherical bubble growth.

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IITH Creators:	IITH Creators ORCiD Banerjee, Raja http://orcid.org/0000-0002-7163-1470
Item Type:	Article
Subjects:	Physics > Mechanical and aerospace
Divisions:	Department of Mechanical & Aerospace Engineering
Depositing User:	Team Library
Date Deposited:	24 Apr 2019 06:09
Last Modified:	28 May 2019 07:05
URI:	http://raiithold.iith.ac.in/id/eprint/5008
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