Comparison of Computational Fluid Dynamic Simulation of a Stirred Tank with Polyhedral and Tetrahedral Meshes
نویسندگان
1 Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, P.R. CHINA
2 School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. CHINA
3 School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. CHINA
4 School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. CHINA
5 School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. CHINA
6 School of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. CHINA
7 Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, P.R. CHINA
8 Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, P.R.CHINA
doi
10.30492/ijcce.2019.34950چکیده
This work compares the accuracy and calculation efficiency of various tetrahedral and polyhedral meshes in a Computational Fluid Dynamic (CFD) simulation of a stirred tank. The polyhedral mesh was found leading to much fewer mesh cells than the tetrahedral one without missing the calculation accuracy. The CFD numerical simulation results of the polyhedral mesh better agree to the experimental data comparing to the tetrahedral one at the same mesh cell number. In addition, the results of polyhedral mesh were also found to be more accurate than the tetrahedral one which was refined by adaptive meshing based on the velocity gradient.
