Incremental displacement-correction schemes for incompressible fluid-structure interaction

نویسنده

  • Miguel A. Fernández
چکیده

In this paper we introduce a class of incremental displacement-correction schemes for the explicit coupling of a thin-structure with an incompressible fluid. These methods enforce a specific Robin-Neumann explicit treatment of the interface coupling. We provide a general stability and convergence analysis that covers both the incremental and the non-incremental variants. Their stability properties are independent of the added-mass effect. The superior accuracy of the incremental schemes (with respect to the original non-incremental variant) is highlighted by the error estimates, and then confirmed in a benchmark by numerical experiments. Key-words: Fluid-structure interaction, Stokes equation, thin-solid, time-discretization, explicit coupling schemes, Robin-Neumann schemes,finite element method, error estimates ∗ e-mail: [email protected] in ria -0 06 05 89 0, v er si on 3 1 Fe b 20 12 Schémas avec correction de déplacement incrémentale pour l’interaction fluide-structure: stabilité et convergence Résumé : Dans cet article nous introduisons une classe de schémas avec correction de déplacement incrémentale pour le couplage explicite d’une structure mince et d’un fluide incompressible. Ces méthodes imposent un traitement spécifique Robin-Neumann explicite du couplage à l’interface. Nous proposons une analyse générale de stabilité et de convergence, qui traite à la fois les variantes incrémentales et non-incrémentale. Leurs propriétés de stabilité sont indépendants de l’effet de masse ajoutée. La précision supérieure des schémas incrémentaux (par rapport à la variante originale non-incrémentale) est mise en évidence par des estimations d’erreur a priori, puis confirmée par des expériences numériques dans un cas test connu. Mots-clés : Interaction fluide-structure, équation de Stokes, structure mince, discrétisation en temps, couplage explicite, schémas Robin-Neumann, méthode des éléments finis, estimations d’erreur. in ria -0 06 05 89 0, v er si on 3 1 Fe b 20 12 Incremental displacement-correction schemes 3

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Displacement-velocity correction schemes for incompressible fluid-structure interaction

We propose a new class of time-marching schemes for the explicit coupling of an incompressible fluid and an elastic solid (not necessarily thin). We state a general energy-based stability result and illustrate the accuracy of the different variants in a numerical benchmark. To cite this article: A. Name1, A. Name2, C. R. Acad. Sci. Paris, Ser. I 340 (2005).

متن کامل

Unconditionally Stable Pressure-Correction Schemes for a Linear Fluid-Structure Interaction Problem

We consider in this paper numerical approximation of the linear fluid-structure interaction (FSI). We construct a new class of pressure-correction schemes for the linear FSI problem with a fixed interface, and prove rigorously that they are unconditionally stable. These schemes are computationally very efficient, as they lead to, at each time step, a coupled linear elliptic system for the veloc...

متن کامل

Study of Pulsatile Non-Newtonian Blood Flow Through Abdominal Aorta and Renal Arteries Incorporating Fluid- Structure Interaction

Background: The interaction between the blood and the vessel wall is of great clinical interest in studying cardiovascular diseases, the major causes of death in developed countries.Objective: To understand the effects of incorporating fluid-structure interaction into the simulation of blood flow through an anatomically realistic model of abdominal aorta and renal arteries reconstructed from CT...

متن کامل

Improved Robustness of the Fluid-Structure Interaction Simulation with a Nearly Incompressible Elasticity Model

In this work, the robustness of the fluid-structure interaction simulation with a nearly incompressible elasticity model from our previous work [Partitioned solvers for the fluid-structure interaction problems with a nearly incompressible elasticity model, Comput Visual Sci, 14:227-247, 2012] is improved. At each time step of the FSI simulation, using properly chosen elementwise stabilization p...

متن کامل

A Monolithic Fem Solver for an Ale Formulation of Fluid–structure Interaction with Configuration for Numerical Benchmarking

Abstract. We investigate a monolithic algorithm to solve the problem of time dependent interaction between an incompressible viscous fluid and an elastic solid. The continuous formulation of the problem and its discretization is done in a monolithic way, treating the problem as one continuum. The Q2/P dis 1 finite elements are used for the discretization and an approximate Newton method with co...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Numerische Mathematik

دوره 123  شماره 

صفحات  -

تاریخ انتشار 2013