Fast fluid–structure interaction simulations using a displacement-based finite element model equipped with an explicit streamline integration prediction
Cita com:
hdl:2117/185482
Tipus de documentArticle
Data publicació2017-03
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Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
Abstract
We propose here a displacement-based updated Lagrangian fluid model developed to facilitate a monolithic coupling with a wide range of structural elements described in terms of displacements. The novelty of the model consists in the use of the explicit streamline integration for predicting the end-of-step configuration of the fluid domain. It is shown that this prediction considerably alleviates the time step size restrictions faced by the former Lagrangian models due to the possibility of an element inversion within one time step. The method is validated and compared with conventional approaches using three numerical examples. Time step size and corresponding Courant numbers leading to optimal behavior in terms of computational efficiency are identified.
CitacióRyzhakov, P. [et al.]. Fast fluid–structure interaction simulations using a displacement-based finite element model equipped with an explicit streamline integration prediction. "Computer methods in applied mechanics and engineering", Març 2017, vol. 315, p. 1080-1097.
ISSN0045-7825
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0045782516310477
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