A Fixed-Mesh Approach for Gas-Liquid-Rigid Interaction Problems

28th IAHR symposium on Hydraulic Machinery and Systems

Sugiyama, K.^1,2 ; Okubo, H.^1 ; Imahoko, R.^3 ; Sakakibara, J.^3 ; Takagi, S.^4

Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka

560-8531, Japan^1

Advanced Center for Computing and Communication, RIKEN, 2-1 Hirosawa, Wako, Saitama

351-0106, Japan^2

Department of Mechanical Engineering, Meiji University, 1-1-1 Higashimita, Tama- ku, Kanagawa, Kawasaki

214-8571, Japan^3

School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo

113-8656, Japan^4

关键词: Basic equations;    Boundary data;    Cartesian grid;    Gas liquids;    Immersion method;    Interaction problems;    Simulated results;    Volume of fluids;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/49/6/062020/pdf
DOI  :  10.1088/1755-1315/49/6/062020

来源: IOP

【 摘 要 】

A fixed-mesh approach has been developed to facilitate predicting a certain class of gas-liquid-rigid interaction problems. All the basic equations are discretized on a Cartesian grid in a finite-difference manner. The Volume-Of-Fluid and Boundary Data Immersion methods are employed to treat the gas-liquid and fluid-rigid interfaces, respectively. A hybrid OpenMP- MPI approach is adopted for parallel computing. The developed code is validated through comparisons with experiments of an oil-air flow driven by a rotating disk with holes. The simulated results demonstrate the capability in capturing the velocity distributions.