Flexible rod-fluid interaction based on an improved localized radial basis function collocation method

Pengfei Jiang

doi:10.1016/j.advengsoft.2026.104164

Flexible rod-fluid interaction based on an improved localized radial basis function collocation method

2026-03-24

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DOI：10.1016/j.advengsoft.2026.104164

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Abstract

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• Introducing a compact upwind support domain improves the stability of the LRBFCM. • The staggered node scheme effectively suppresses pressure instabilities in Navier-Stokes fluid-structure interaction. • This method significantly improves computational efficiency for membrane damped fluid-structure interaction motion. • The method accurately captures tail oscillations of flexible rods in long-channel flow. • Compared to traditional finite difference methods, this method demonstrates significant performance improvements.

Keywords:

Flexible rod-fluid interaction

Localized radial basis function collocation method

Upwind support domain

Staggered node scheme

Computational efficiency

Flexible rod-fluid interaction based on an improved localized radial basis function collocation method

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