Author:
Zhao LanHao,Mu Kailong,Mao Jia,Hongvan Khuc,Peng Dawei
Abstract
Purpose
Moving interface problems exist commonly in nature and industry, and the main difficulty is to represent the interface. The purpose of this paper is to capture the accurate interface, a novel three-dimensional one-layer particle level set (OPLS) method is presented by introducing Lagrangian particles to reconstruct the seriously distorted level set function.
Design/methodology/approach
First, the interface is captured by the level set method. Then, the interface is corrected with only one-layer particles advected with the flow to ensure that the level set function value of the particle is equal to 0. When interfaces are merged, all particles in merged regions are deleted, while the added particles near the generated interface are used to determine the interface as the interface is separated.
Findings
The OPLS method is validated with well-known benchmark examples, such as the long-term advection of a sphere, the rotation of a three-dimensional slotted disk and sphere, single vortex in a box, sphere merging and separation, deformation of a sphere. The simulation results indicate that the proposed method is found to be highly reliable and accurate.
Originality/value
This method exhibits excellent conservation of the area bounded by the interface. The extraordinary performance is also shown in dealing with complex interface topological changes.
Subject
Applied Mathematics,Computer Science Applications,Mechanical Engineering,Mechanics of Materials
Reference53 articles.
1. Modeling of multi-phase flows and natural convection in a square cavity using an incompressible smoothed particle hydrodynamics;International Journal of Numerical Methods for Heat and Fluid Flow,2015
2. ISPH method for double-diffusive natural convection under cross-diffusion effects in an anisotropic porous cavity/annulus;International Journal of Numerical Methods for Heat and Fluid Flow,2016
3. Analysis of unsteady mixed convection in lid-driven cavity included circular cylinders motion using an incompressible smoothed particle hydrodynamics method;International Journal of Numerical Methods for Heat and Fluid Flow,2015
4. Modelling of surface tension force for free surface flows in ISPH method;International Journal of Numerical Methods for Heat and Fluid Flow,2013
5. Natural convection from heated fin shapes in a nanofluid-filled porous cavity using incompressible smoothed particle hydrodynamics;International Journal of Numerical Methods for Heat and Fluid Flow,2019
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献