| Title | Conservative remapping algorithm for polygonal staggered meshes |
| Creator | |
| Date Issued | 2006 |
| Source Publication | Jisuan Wuli/Chinese Journal of Computational Physics
 |
| ISSN | 1001-246X |
| Volume | 23Issue:5Pages:511-517 |
| Abstract | A discrete conservative remapping algorithm based upon refinement and numerical integrals, named particle remapping algorithm, is presented. The mass density distribution is chosen as either a piecewise constant with first-order accuracy or a piecewise linear distribution with second-order accuracy. It results in a first-order and a second-order algorithm. The density gradient is evaluated by an area average method with a piecewise linear distribution. On a staggered mesh, in which velocity is vertex-centered, an auxiliary mesh is introduced, and the velocity is remapped. The particle remapping algorithm can be applied to a structured or an unstructured mesh. It does not require a one-to-one mapping between the old and the new meshes. Numerical results show that the first-order algorithm is robust but has an excessive diffusion. The second-order one is better in shape preservation but violates the monotonicity sometimes. To improve the monotonicity, a conservative mass repair algorithm for structured grids is extended to unstructured grids preserving upper and lower bounds of the density. Several remapping results are presented and the errors are analyzed. |
| Keyword | Auxiliary grid Conservative remapping Particle Staggered mesh |
| URL | View source |
| Language | 英语English |
| Scopus ID | 2-s2.0-33751409721 |
| Citation statistics | |
| Document Type | Journal article |
| Identifier | http://repository.uic.edu.cn/handle/39GCC9TT/10760 |
| Collection | Research outside affiliated institution |
| Affiliation | Laboratory of Computational Physics,Institute of Applied Physics and Computational Mathematics,Beijing 100088,China |
| Recommended Citation GB/T 7714 | Wen，Wan Zhi,Lin，Zhong,Wang，Rui Liet al. Conservative remapping algorithm for polygonal staggered meshes[J]. Jisuan Wuli/Chinese Journal of Computational Physics, 2006, 23(5): 511-517. |
| APA | Wen，Wan Zhi, Lin，Zhong, Wang，Rui Li, & Fu，Shang Wu. (2006). Conservative remapping algorithm for polygonal staggered meshes. Jisuan Wuli/Chinese Journal of Computational Physics, 23(5), 511-517. |
| MLA | Wen，Wan Zhi,et al."Conservative remapping algorithm for polygonal staggered meshes". Jisuan Wuli/Chinese Journal of Computational Physics 23.5(2006): 511-517. |
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