Article ID Journal Published Year Pages File Type
510272 Computers & Structures 2014 14 Pages PDF
Abstract

•We proposed an efficient sliding mesh technique to prevent severe fluid mesh distortion.•Fluid meshes can slide each other to accommodate a rotational motion of the solid.•Fluid mesh outside the sliding interface can translate through a background fluid mesh.•Variable node elements (VNEs) connect non-matching meshes sliding each.•A fully coupled equation of FSI problems can be solved efficiently in a single computational domain.

A new sliding mesh technique for finite element simulation of fluid–solid interaction problems with large structural motions is presented in this paper. Fluid meshes surrounding a solid can slide each other to accommodate a rotational motion of the solid, and a fluid mesh outside the sliding interface can translate through a background fluid mesh. Because of relative motions of sliding fluid meshes and independently designed fluid and solid meshes, non-matching meshes occur at their common interfaces. The non-matching meshes are connected by using variable-node elements which guarantee the continuity, the compatibility and the force equilibrium across the interfaces.

Related Topics
Physical Sciences and Engineering Computer Science Computer Science Applications
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