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Title:
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Second-Order Semi-Implicit Partitioned Method for Fluid-Structure Interaction Problems
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Author:
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Naseri, Alireza; González Acedo, Ignacio; Amani, Ahmad; Pérez Segarra, Carlos David
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
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Abstract:
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This paper is concerned with numerical solution of fluid-structure interaction (FSI) problems involving an incompressible viscous flow and an elastic structure. A second-order time accurate semi-implicit method is proposed that separates the pressure term of the fluid equations and strongly couples it to the structure, while the rest of the fluid terms and the geometrical derivatives (moving mesh) are only loosely coupled. A second-order projection method is used to solve the fluid equations and also as a framework for the FSI coupling. Particular attention is paid to the accuracy of the fluid pressure in the projection method. The proposed coupling method retains the second-order accuracy for the coupled system. Numerical tests are carried out on a benchmark problem and the second-order accuracy for all the variables of interest (fluid velocity and pressure, and structural deformation) is demonstrated. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
-Fluid-structure interaction
-Computational fluid dynamics
-Fluid-Structure Interaction
-Partitioned Method
-Semi-Implicit Coupling
-Projection Method
-Second-Order Temporal Accuracy
-Interacció fluid-estructura
-Dinàmica de fluids computacional |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE)
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