書報討論 2021/11/25: An Unified CFD Framework for High Performance Computing

  • 2021-11-19
  • 機械系網管
Seminar Speaker: Wei-Hsiang Wang（王威翔）
Title:  An Unified CFD Framework for High Performance Computing
Date: 2021/11/25 (Thursday) 3:30 pm – 5:20pm
Location: Engineering 5 Building B1 International Conference Hall (工程五館 B1 國際會議廳) 
video conference (https://reurl.cc/q18jL3)
 
Abstract
In scientific and industrial applications, the simulation of multi-physics phenomena involve fluid flow, chemical reaction, phase change and energy release are always challenging as the complex modeling of different solvers. In order to conduct an unified solution by CFD, we present a Cartesian based framework by combining numerical models for these phenomena into a single solver. The meshing system by Hierarchical Cartesian grid and Building-Cube method with immersed boundary method is adopted for arbitrary and complex industrial used geometry. All speed compressible flow solver by preconditioned Roe scheme and 5th order MUSCL scheme coupled with species transport equations is solved for the flow and energy fields with reacting species. Chemical reaction and combustion model are computed by coupling the chemical reaction library CANTERA with level-set flame front tracking method, and the parcel model-based particle-source-in-cell (PSI-cell) method is proposed for liquid fuel spray and evaporation. An implicit LES turbulent model with automatic dissipation adjustment (ADA) model is used for transient turbulent modeling without parameters tuning. The High Performance Computing (HPC) system is adopted for massively parallel computation by MPI and CUDA platform. Several qualitative and quantitative validation cases are carried out including natural convection, IC engine, turbulent spray jet combustion, vehicle aeroacoustics, and bearing lubrication simulation. 


 
Education
 
2009/08 – 2014/06 National Chiao Tung University
Ph.D. in Mechanical Engineering
 
2006/08 - 2008/07 National Chiao Tung University
M.S. in Mechanical Engineering 
 
2002/09 - 2006/07 National Chiao Tung University 
B.S. in Mechanical Engineering
 
 
Experience
 
2019/08 - Present National Chung Hsing University TAIWAN
Assistant Professor
 
2016/04 - 2019/05 RIKEN Center for Computational Science JAPAN
Postdoctoral Researcher
 
2015/06 - 2016/03 Hokkaido University JAPAN
Postdoctoral Researcher
 
2014/07 - 2015/05 National Chiao Tung University TAIWAN
Postdoctoral Researcher
 
2013/07 - 2014/02 Texas A&M University USA
Visiting Scholar