A wavelet immersed boundary method for two-variable coupled fluid-structure interactions

作者：

Highlights：

• A wavelet IB method coupled a traditional IB method and a wavelet FEM.

• A boundary influence matrix is constructed to restrain the non-physical oscillations.

• A series of B-spline wavelet delta functions improve the interpolation accuracy.

• The numerical examples show that the new method can solve the two-variable coupled FSI problems and alleviate the non-physical oscillations efficiently.

摘要

•A wavelet IB method coupled a traditional IB method and a wavelet FEM.•A boundary influence matrix is constructed to restrain the non-physical oscillations.•A series of B-spline wavelet delta functions improve the interpolation accuracy.•The numerical examples show that the new method can solve the two-variable coupled FSI problems and alleviate the non-physical oscillations efficiently.

论文关键词：Fluid-structure interaction,Wavelet immersed boundary method,B-spline wavelet delta function,Boundary influence matrix

论文评审过程：Received 24 January 2021, Revised 24 March 2021, Accepted 26 March 2021, Available online 23 April 2021, Version of Record 23 April 2021.

论文官网地址：https://doi.org/10.1016/j.amc.2021.126243