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A second-order time accurate semi-implicit method for fluid–structure interaction problems

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10.1016/j.jfluidstructs.2019.02.007
 
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hdl:2117/133394

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Naseri, AlirezaMés informació
González Acedo, IgnacioMés informació
Amani, AhmadMés informacióMés informació
Pérez Segarra, Carlos DavidMés informacióMés informacióMés informació
Oliva Llena, AsensioMés informacióMés informacióMés informació
Document typeArticle
Defense date2019-04-01
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
This paper is concerned with numerical solution of fluid-structure inter-action (FSI) problems involving an incompressible viscous flow and an elasticstructure. A semi-implicit partitioned method with second-order temporalaccuracy is proposed. The method separates the pressure term of the fluidequations and strongly couples it to the structure, while the remaining fluidterms and the geometrical nonlinearities are treated explicitly. A second-order projection method is used to solve the fluid equations and also as aframework for the FSI coupling. Particular attention is paid to the boundaryconditions for fluid equations and the accuracy of the fluid pressure on thecommon interface. The proposed coupling method retains the second-orderaccuracy for fully-coupled nonlinear FSI problems. Extensive numerical testsare carried out on a number of benchmark FSI problems and the second-ordertemporal accuracy for all the variables of interest (fluid velocity and pressure,and structural displacement) is demonstrated.
CitationNaseri, A. [et al.]. A second-order time accurate semi-implicit method for fluid–structure interaction problems. "Journal of fluids and structures", 1 Abril 2019, vol. 86, p. 135-155. 
URIhttp://hdl.handle.net/2117/133394
DOI10.1016/j.jfluidstructs.2019.02.007
ISSN0889-9746
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0889974618305553
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