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Investigations on the Droplet Impact onto a Spherical Surface with a High Density Ratio Multi-Relaxation Time Lattice-Boltzmann Model

Zhang, D, Papadikis, K and Gu, S (2015) Investigations on the Droplet Impact onto a Spherical Surface with a High Density Ratio Multi-Relaxation Time Lattice-Boltzmann Model Computational Physics, 16 (04, Oc). pp. 892-912.

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Abstract

In the current study, a two-dimensional multi-relaxation time (MRT) lattice Boltzmann model which can tolerate high density ratios and low viscosity is employed to simulate the liquid droplet impact onto a curved target. The temporal variation of the film thickness at the north pole of the target surface is investigated. Three different temporal phases of the dynamics behavior, namely, the initial drop deformation phase, the inertia dominated phase and the viscosity dominated phase are reproduced and studied. The effect of the Reynolds number, Weber number and Galilei number on the film flow dynamics is investigated. In addition, the dynamic behavior of the droplet impact onto the side of the curved target is shown, and the effect of the contact angle, the Reynolds number and the Weber number are investigated.

Item Type: Article
Authors :
NameEmailORCID
Zhang, DUNSPECIFIEDUNSPECIFIED
Papadikis, KUNSPECIFIEDUNSPECIFIED
Gu, SUNSPECIFIEDUNSPECIFIED
Date : 3 June 2015
Identification Number : 10.4208/cicp.210613.310314a
Uncontrolled Keywords : Multiphase flow, MRT Lattice Boltzmann, high-density-ratio, droplet impact, film thickness, dynamic behavior
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 10:59
Last Modified : 31 Oct 2017 18:14
URI: http://epubs.surrey.ac.uk/id/eprint/810538

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