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Affiliation of Author(s):航空学院

Journal:MODERN PHYSICS LETTERS B

Key Words:Moving boundary extremely large deformation multi-block grid dynamic mesh

Abstract:Aiming at extremely large deformation, a novel predictor corrector-based dynamic mesh method for multi-block structured grid is proposed. In this work, the dynamic mesh generation is completed in three steps. At first, some typical dynamic positions are selected and high-quality multi-block grids with the same topology are generated at those positions. Then, Lagrange interpolation method is adopted to predict the dynamic mesh at any dynamic position. Finally, a rapid elastic deforming technique is used to correct the small deviation between the interpolated geometric configuration and the actual instantaneous one. Compared with the traditional methods, the results demonstrate that the present method shows stronger deformation ability and higher dynamic mesh quality.

ISSN No.:0217-9849

Translation or Not:no

Date of Publication:2018-05-10

Co-author:Chen, Hao,lzl

Correspondence Author:gtq