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. In: Proceedings of 17th ISME Conference, New Delhi, India.

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Abstract

In the past decade, single component multicom-ponent lattice Boltzmann model have been interest of research due to its conceptual simplicity, computational efficiency and stability at high density ratio. In this paper the pseudo-potential model coupled with Peng-Robinson equation of state and exact difference method (EDM) forcing scheme. 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 cavitating flows at low and high density ratios. Additionally a comparative study on the performances of Shan & Chen (SCEOS) and Peng-Robin-son equations of state (PREOS) in simulating bubble growth in quiescent flow. Furthermore attempt has been made to study a bubble growth behavior at various relaxation parameters and viscosity ratio other than unity. The results show that bubble growth rate is consistent with the bubble theoretical studies and agree well with Rayleigh–Plesset equation which predicts the spherical bubble growth. The simulations of multi bubble inception is presented

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IITH Creators:	IITH Creators ORCiD Banerjee, Raja http://orcid.org/0000-0002-7163-1470
Item Type:	Conference or Workshop Item (Paper)
Subjects:	Physics > Mechanical and aerospace
Divisions:	Department of Mechanical & Aerospace Engineering
Depositing User:	Team Library
Date Deposited:	24 Apr 2019 05:47
Last Modified:	24 Apr 2019 05:47
URI:	http://raiithold.iith.ac.in/id/eprint/5007
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