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[期刊]

A fast particle-locating method for the arbitrary polyhedral mesh

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Author:

Li, Zongyang (Li, Zongyang.) | Wang, Yefei (Wang, Yefei.) | Wang, Le (Wang, Le.)

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Abstract:

A fast particle-locating method is proposed for the hybrid Euler-Lagrangian models on the arbitrary polyhedral mesh, which is of essential importance to improve the computational efficiency by searching the host cells for the tracked particles very efficiently. A background grid, i.e., a uniform Cartesian grid with a grid spacing much smaller than computational mesh, is constructed over the whole computational domain. The many-to-many mapping relation between the computational mesh and the background grid is then specified through a recursive tetrahedron neighbor searching procedure, after the tetrahedral decomposition of computational cells and a mapping inverse operation. Finally, the host cell is straightforwardly identified by the point-in-cell test among the optional elements determined based on the mapping relation. The proposed method is checked on three meshes with different types of the cells and compared with the existing methods in the literatures. The results reveal that the present method is highly efficient and easy to implement on the arbitrary polyhedral mesh. © 2019 by the authors.

Keyword:

Cells Computational efficiency Cytology Inverse problems Lagrange multipliers Location Mapping Mesh generation

Author Community:

  • [ 1 ] [Li, Zongyang]School of Petroleum Engineering, China University of Petroleum, Qingdao; 266580, China; Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying; 257015, China
  • [ 2 ] [Wang, Yefei]School of Petroleum Engineering, China University of Petroleum, Qingdao; 266580, China
  • [ 3 ] [Wang, Le]School of Human Settlements and Civil Engineering Xi'an Jiaotong University, Xi'an; 710049, China

Reprint Author's Address:

  • [Wang, Yefei]School of Petroleum Engineering, China University of Petroleum, Qingdao; 266580, China;;

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Source :

Algorithms

Year: 2019

Issue: 9

Volume: 12

ESI Discipline: MATHEMATICS;

ESI HC Threshold:36

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 2

30 Days PV: 4

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