A Hybrid Dynamic Mesh Generation Method for Multi-Block Structured Grid

A Hybrid Dynamic Mesh Generation Method for Multi-Block Structured Grid

Year:    2017

Author:    Hao Chen, Zhiliang Lu, Tongqing Guo

Advances in Applied Mathematics and Mechanics, Vol. 9 (2017), Iss. 4 : pp. 887–903

Abstract

In this paper, a hybrid dynamic mesh generation method for multi-block structured grid is presented based on inverse distance weighting (IDW) interpolation and transfinite interpolation (TFI). The major advantage of the algorithm is that it maintains the effectiveness of TFI, while possessing the ability to deal with multi-block structured grid from the IDW method. In this approach, dynamic mesh generation is made in two steps. At first, all domain vertexes with known deformation are selected as sample points and IDW interpolation is applied to get the grid deformation on domain edges. Then, an arc-length-based TFI is employed to efficiently calculate the grid deformation on block faces and inside each block. The present approach can be well applied to both two-dimensional (2D) and three-dimensional (3D) problems. The proposed method has been well-validated by several test cases. Numerical results show that dynamic meshes with high quality can be generated in an accurate and efficient manner.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aamm.2016.m1423

Advances in Applied Mathematics and Mechanics, Vol. 9 (2017), Iss. 4 : pp. 887–903

Published online:    2017-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    17

Keywords:    Multi-block structured grid mesh deformation inverse distance weighting transfinite interpolation.

Author Details

Hao Chen

Zhiliang Lu

Tongqing Guo