TY - JOUR
T1 - An Efficient Dynamic Mesh Generation Method for Complex Multi-Block Structured Grid
AU - Li , Ding
AU - Lu , Zhiliang
AU - Guo , Tongqing
JO - Advances in Applied Mathematics and Mechanics
VL - 1
SP - 120
EP - 134
PY - 2014
DA - 2014/06
SN - 6
DO - http://doi.org/10.4208/aamm.2013.m199
UR - https://global-sci.org/intro/article_detail/aamm/8.html
KW - Multi-block structured grid, mesh deformation, radial basis functions, transfinite
interpolation.
AB - <p style="text-align: justify;">Aiming at a complex multi-block structured grid, an efficient dynamic mesh
generation method is presented in this paper, which is based on radial basis functions
(RBFs) and transfinite interpolation (TFI). When the object is moving, the multi-block
structured grid would be changed. The fast mesh deformation is critical for numerical
simulation. In this work, the dynamic mesh deformation is completed in two steps. At
first, we select all block vertexes with known deformation as center points, and apply
RBFs interpolation to get the grid deformation on block edges. Then, an arc-lengthbased 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. Numerical results show that the dynamic
meshes for all test cases can be generated in an accurate and efficient manner.</p>