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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40087

Title: Finite element computations for unsteady fluid and elastic membrane interaction problems
Authors: S.-J. Liang;G. P. Neitzel;C. K. Aidun
Contributors: 國立臺灣海洋大學:海洋環境資訊學系
Date: 1997-06
Issue Date: 2017-01-13T07:12:32Z
Publisher: International Journal for Numerical Methods in Fluids
Abstract: Abstract: The interaction between the hydrodynamic forces of a flow field and the elastic forces of adjacent deformable boundaries is described by elastohydrodynamics, a coupled fluid–elastic membrane problem. Direct numerical solution of the unsteady, highly non-linear equations requires that the dynamic evolution of both the flow field and the domain shape be determined as part of the solution, since neither is known a priori. This paper describes a numerical algorithm based on the deformable spatial domain space–time (DSD/ST) finite element method for the unsteady motion of an incompressible, viscous fluid with elastic membrane interaction. The unsteady Navier–Stoke and elastic membrane equations are solved separately using an iterative procedure by the GMRES technique with an incomplete lower-upper (ILU) decomposition at every time instant. One-dimensional, two-dimensional and deformable domain model problems are used to demonstrate the capabilities and accuracy of the present algorithm. Both steady state and transient problems are studied.
Relation: 24(11)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40087
Appears in Collections:[海洋環境資訊系] 期刊論文

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