Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system
Abstract A parallel unstructured mesh generation technique is proposed based on the built-in cyber-physical system (CPS) of Parallel Virtual Machine context. A static load-balancing strategy for computational domain decomposition is firstly presented in the paper. After dividing the whole computatio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-03-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13638-019-1390-8 |
| _version_ | 1818935780049944576 |
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| author | Hao Dong Haiqing Si Huiying Zong Xiaozhu Liu |
| author_facet | Hao Dong Haiqing Si Huiying Zong Xiaozhu Liu |
| author_sort | Hao Dong |
| collection | DOAJ |
| description | Abstract A parallel unstructured mesh generation technique is proposed based on the built-in cyber-physical system (CPS) of Parallel Virtual Machine context. A static load-balancing strategy for computational domain decomposition is firstly presented in the paper. After dividing the whole computational domain into several sub-domains, unstructured grids are separately generated in each sub-domain using the advancing-front grid generation technique. Besides, for a dynamic load-balancing strategy, Lohner’s advancing front domain-splitting algorithm is improved to make the sub-grids and their boundaries more favorable for the grid generation. Moreover, a new optimization strategy of sub-domain’s boundary is simultaneously presented to smooth the boundaries and improve the quality of grids. Finally, conditions of receiving new points and elements are also developed during the grid generation in the sub-domain. Meanwhile, a new strategy of receiving new elements and refusing new points during the interface grid generation is proposed, which can save computational cost. A new parallel Laplacian smoother technique is implemented to generate high-quality mesh. Meshes for NACA0012 airfoil, cylinder, and multi-element airfoil are generated by the improved parallel algorithm using the static and dynamic load-balancing strategies. Some comparisons of parallel calculations are also made using the different number of processors in the tables. |
| first_indexed | 2024-12-20T05:25:36Z |
| format | Article |
| id | doaj.art-110d3d17a26e47c9ad41c6260f1fdad3 |
| institution | Directory Open Access Journal |
| issn | 1687-1499 |
| language | English |
| last_indexed | 2024-12-20T05:25:36Z |
| publishDate | 2019-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-110d3d17a26e47c9ad41c6260f1fdad32022-12-21T19:51:53ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14992019-03-012019111110.1186/s13638-019-1390-8Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical systemHao Dong0Haiqing Si1Huiying Zong2Xiaozhu Liu3College of Aerospace Engineering, Nanjing University of Aeronautics and AstronauticsCollege of Civil Aviation and Flight, Nanjing University of Aeronautics and AstronauticsCollege of Science, Nanjing University of Aeronautics and AstronauticsSchool of Automation, Wuhan University of TechnologyAbstract A parallel unstructured mesh generation technique is proposed based on the built-in cyber-physical system (CPS) of Parallel Virtual Machine context. A static load-balancing strategy for computational domain decomposition is firstly presented in the paper. After dividing the whole computational domain into several sub-domains, unstructured grids are separately generated in each sub-domain using the advancing-front grid generation technique. Besides, for a dynamic load-balancing strategy, Lohner’s advancing front domain-splitting algorithm is improved to make the sub-grids and their boundaries more favorable for the grid generation. Moreover, a new optimization strategy of sub-domain’s boundary is simultaneously presented to smooth the boundaries and improve the quality of grids. Finally, conditions of receiving new points and elements are also developed during the grid generation in the sub-domain. Meanwhile, a new strategy of receiving new elements and refusing new points during the interface grid generation is proposed, which can save computational cost. A new parallel Laplacian smoother technique is implemented to generate high-quality mesh. Meshes for NACA0012 airfoil, cylinder, and multi-element airfoil are generated by the improved parallel algorithm using the static and dynamic load-balancing strategies. Some comparisons of parallel calculations are also made using the different number of processors in the tables.http://link.springer.com/article/10.1186/s13638-019-1390-8Cyber-physical systemAdvancing-front methodUnstructured gridParallel algorithmDomain-splittingParallel Virtual Machine |
| spellingShingle | Hao Dong Haiqing Si Huiying Zong Xiaozhu Liu Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system EURASIP Journal on Wireless Communications and Networking Cyber-physical system Advancing-front method Unstructured grid Parallel algorithm Domain-splitting Parallel Virtual Machine |
| title | Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system |
| title_full | Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system |
| title_fullStr | Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system |
| title_full_unstemmed | Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system |
| title_short | Unstructured mesh generation based on Parallel Virtual Machine in cyber-physical system |
| title_sort | unstructured mesh generation based on parallel virtual machine in cyber physical system |
| topic | Cyber-physical system Advancing-front method Unstructured grid Parallel algorithm Domain-splitting Parallel Virtual Machine |
| url | http://link.springer.com/article/10.1186/s13638-019-1390-8 |
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