Next Article in Journal
Reducing Computational Costs of Automatic Calibration of Rainfall-Runoff Models: Meta-Models or High-Performance Computers?
Next Article in Special Issue
Numerical Investigation on the Hydraulic Properties of the Skimming Flow over Pooled Stepped Spillway
Previous Article in Journal
Potential Changes of Annual-Averaged Nutrient Export in the South Saskatchewan River Basin under Climate and Land-Use Change Scenarios
Previous Article in Special Issue
Experimental Optimization of Gate-Opening Modes to Minimize Near-Field Vibrations in Hydropower Stations
Article Menu

Export Article

Open AccessArticle
Water 2018, 10(10), 1439; https://doi.org/10.3390/w10101439

Study of Cavitation Bubble Collapse near a Wall by the Modified Lattice Boltzmann Method

State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
*
Author to whom correspondence should be addressed.
Received: 2 September 2018 / Revised: 21 September 2018 / Accepted: 3 October 2018 / Published: 12 October 2018
(This article belongs to the Special Issue Advances in Hydraulics and Hydroinformatics)
Full-Text   |   PDF [5446 KB, uploaded 12 October 2018]   |  

Abstract

In this paper, an improved lattice Boltzmann Shan‒Chen model coupled with Carnahan-Starling equation of state (C-S EOS) and the exact differential method (EDM) force scheme is used to simulate the cavitation bubble collapse in the near-wall region. First, the collapse of a single cavitation bubble in the near-wall region was simulated; the results were in good agreement with the physical experiment and the stability of the model was verified. Then the simulated model was used to simulate the collapse of two cavitation bubbles in the near-wall region. The main connection between the two cavitation bubble centre lines and the wall surface had a 45° angle and parallel and the evolution law of cavitation bubbles in the near-wall region is obtained. Finally, the effects of a single cavitation bubble and double cavitation bubble on the wall surface in the near-wall region are compared, which can be used to study the method to reduce the influence of cavitation on solid materials in practical engineering. The cavitation bubble collapse process under a two-dimensional pressure field is visualized, and the flow field is used to describe the morphological changes of cavitation bubble collapse in the near-wall region. The improved lattice Boltzmann Method (LBM) Shan‒Chen model has many advantages in simulating cavitation problems, and will provide a reference for further simulations. View Full-Text
Keywords: collapse near a wall; double cavitation bubble; tilt distribution cavitation; parallel cavitation; pseudopotential lattice Boltzmann model collapse near a wall; double cavitation bubble; tilt distribution cavitation; parallel cavitation; pseudopotential lattice Boltzmann model
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Mao, Y.; Peng, Y.; Zhang, J. Study of Cavitation Bubble Collapse near a Wall by the Modified Lattice Boltzmann Method. Water 2018, 10, 1439.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top