An efficient parallel Chimera grid flow solver based on implicit hole cutting method

Mapping Intimacies ◽

10.1063/1.5043857 ◽

2018 ◽

Cited By ~ 1

Author(s):

Xiaodong Hu ◽

Zhonghua Lu ◽

Jian Zhang ◽

Wu Yuan ◽

Xiazhen Liu ◽

...

Keyword(s):

Cutting Method ◽

Flow Solver ◽

Chimera Grid

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A multigrid overset grid flow solver with implicit hole cutting method

Computer Methods in Applied Mechanics and Engineering ◽

10.1016/j.cma.2006.09.012 ◽

2007 ◽

Vol 196 (9-12) ◽

pp. 1701-1715 ◽

Cited By ~ 22

Author(s):

Wei Liao ◽

Jinsheng Cai ◽

Her Mann Tsai

Keyword(s):

Overset Grid ◽

Cutting Method ◽

Flow Solver

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A parallel algorithm for chimera grid with implicit hole cutting method

The International Journal of High Performance Computing Applications ◽

10.1177/1094342019845042 ◽

2019 ◽

Vol 34 (2) ◽

pp. 169-177 ◽

Cited By ~ 1

Author(s):

Xiaodong Hu ◽

Zhonghua Lu ◽

Jian Zhang ◽

Xiazhen Liu ◽

Wu Yuan ◽

...

Keyword(s):

Parallel Algorithm ◽

Moving Boundary ◽

Parallel Implementation ◽

Data Communication ◽

Grid Method ◽

Test Cases ◽

Cutting Method ◽

Time Consumption ◽

Boundary Process ◽

Chimera Grid

The chimera grid methods have been widely used in the simulation of flow over complex configurations and unsteady moving boundary process. Lee and Baeder presented the implicit hole cutting (IHC) method, which improves the practicability and robustness of chimera grid method. But the excessive time consumption of this method restricts the scalability of parallelism. In this article, based on the parallel implementation of IHC method with structured multi-block grid, the factors which restrict the performance and efficiency are analyzed. Cartesian auxiliary grid is introduced to reduce the communication and computing cost. Finally, test cases are presented to demonstrate the effectiveness of this algorithm, and the calculation and data communication are reduced on the premise of maintaining accuracy.

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