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Modeling for Collapsing Cavitation Bubble near Rough Solid Wall by Mulit-Relaxation-Time Pseudopotential Lattice Boltzmann Model
- Source :
- Journal of Applied Mathematics and Physics. :1243-1256
- Publication Year :
- 2017
- Publisher :
- Scientific Research Publishing, Inc., 2017.
-
Abstract
- Cavitation bubble collapse near rough solid wall is modeled by the multi-relaxation-time (MRT) pseudopotential lattice Boltzmann (LB) model. The modified forcing scheme, which can achieve LB model’s thermodynamic consistency by tuning a parameter related with the particle interaction range, is adopted to achieve desired stability and density ratio. The bubble collapse near rough solid wall was simulated by the improved MRT pseudopotential LB model. The mechanism of bubble collapse is studied by investigating the bubble profiles, pressure field and velocity field evolution. The eroding effects of collapsing bubble are analyzed in details. It is found that the process and the effect of the interaction between bubble collapse and rough solid wall are affected seriously by the geometry of solid boundary. At the same time, it demonstrates that the MRT pseudopotential LB model is a potential tool for the investigation of the interaction mechanism between the collapsing bubble and complex geometry boundary.
- Subjects :
- Physics
Range (particle radiation)
Bubble
Lattice Boltzmann methods
Boundary (topology)
Collapse (topology)
Mechanics
01 natural sciences
010305 fluids & plasmas
Physics::Fluid Dynamics
Pseudopotential
Classical mechanics
Complex geometry
0103 physical sciences
Vector field
010306 general physics
Subjects
Details
- ISSN :
- 23274379 and 23274352
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Mathematics and Physics
- Accession number :
- edsair.doi...........b308ebbb895a6779ee40607496a1bab8