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ROBIN BASED SEMI-IMPLICIT COUPLING IN FLUID-STRUCTURE INTERACTION: STABILITY ANALYSIS AND NUMERICS
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DOI：10.1137/090749694.png)
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摘要
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In this paper, we propose a semi-implicit coupling scheme for the numerical simulation of fluid-structure interaction systems involving a viscous incompressible fluid. The scheme is stable irrespective of the so-called added-mass effect and allows for conservative time-stepping within the structure. The efficiency of the scheme is based on the explicit splitting of the viscous effects and geometrical/convective nonlinearities through the use of the Chorin-Temam projection scheme within the fluid. Stability comes from the implicit pressure-solid coupling and a specific Robin treatment of the explicit viscous-solid coupling, derived from Nitsche's method.
Keyword:
fluid-structure interaction
Chorin-Temam projection scheme
Robin interface conditions
Nitsche's method
fluid incompressibility
added-mass effect
time discretization
semi-implicit coupling
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IF:
2.6
论文数:
5.1K
被引数:
1.8W
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