A parallel hybrid numerical algorithm for simulating gas flow and gas discharge of an atmospheric-pressure plasma jet |
| |
| Authors: | K-M Lin M-H Hu C-T Hung J-S Wu F-N Hwang Y-S Chen G Cheng |
| |
| Affiliation: | 1. Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan;2. Department of Mathematics, National Central University, Taoyuan, Taiwan;3. National Space Organization, National Applied Research Laboratory, Hsinchu, Taiwan;4. Department of Mechanical Engineering, University of Alabama, Birmingham, AL, USA;1. Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain;2. Institut d’Estudis Catalans, Carme 47, Barcelona 08001, Catalonia, Spain;3. Department of Mathematics, Computer Science and Economics, University of Basilicata, Campus Macchia Romana, 85100 Potenza, Italy;1. INSA–Lyon, Laboratoire Vibrations-Acoustique (LVA), 25 bis, av. Jean Capelle, F-69621 Villeurbanne Cedex, France;2. GTM – Grup de recerca en Tecnologies Mèdia, La Salle, Universitat Ramon Llull, C/ Quatre Camins 30, 08022 Barcelona, Catalonia, Spain;1. Plasma Technology Research Center, Nation Fusion Research Institute, Gunsan 573-540, Republic of Korea;2. Kyoungwon Tech, Inc., Seongnam 462-806, Republic of Korea;3. Center for Vacuum Technology, Korea Research Institute of Standard and Science, Daejeon 305-340, Republic of Korea;4. School of Electronics, Telecommunication & Computer Engineering, Korea Aerospace University, Goyang 412-791, Republic of Korea;5. Department of Electrical Engineering, Chungbuk National University, Cheongju 361-763, Republic of Korea;1. Artificial Liver Center, Beijing YouAn Hospital, Capital Medical University, 8 Xitoutiao, Youwai Street, Beijing 100069, China;2. The First Clinical Medical School, Lanzhou University, 1 Donggangxi Road, Lanzhou 730000, China;3. Institute of Liver Diseases, Beijing YouAn Hospital, Capital Medical University, 8 Xitoutiao, Youwai Street, Beijing 100069, China |
| |
| Abstract: | Development of a hybrid numerical algorithm which couples weakly with the gas flow model (GFM) and the plasma fluid model (PFM) for simulating an atmospheric-pressure plasma jet (APPJ) and its acceleration by two approaches is presented. The weak coupling between gas flow and discharge is introduced by transferring between the results obtained from the steady-state solution of the GFM and cycle-averaged solution of the PFM respectively. Approaches of reducing the overall runtime include parallel computing of the GFM and the PFM solvers, and employing a temporal multi-scale method (TMSM) for PFM. Parallel computing of both solvers is realized using the domain decomposition method with the message passing interface (MPI) on distributed-memory machines. The TMSM considers only chemical reactions by ignoring the transport terms when integrating temporally the continuity equations of heavy species at each time step, and then the transport terms are restored only at an interval of time marching steps. The total reduction of runtime is 47% by applying the TMSM to the APPJ example presented in this study. Application of the proposed hybrid algorithm is demonstrated by simulating a parallel-plate helium APPJ impinging onto a substrate, which the cycle-averaged properties of the 200th cycle are presented. The distribution patterns of species densities are strongly correlated by the background gas flow pattern, which shows that consideration of gas flow in APPJ simulations is critical. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
