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A Parallel Immersed Boundary Method for Blood-like Suspension Flow Simulations

Conference paper
Part of the Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 74)

Abstract

This paper presents a numerically efficient implementation of the Immersed Boundary Method (IBM), originally developed by [7] to simulate fluid/elastic-structure interactions. The fluid is assumed to be incompressib0le with uniform density, viscosity, while the immersed boundaries have fixed topologies with a linear elastic behavior. Based on the finite-difference method, a major numerical advantage of the IBM is the high level of uniformity of mesh and stencil, avoiding the critical interpolation processes of the cut-cell/direct methods. The difficulty of accurately simulating interaction phenomena involving moving complex geometries can be overcome by implementing large and parallel IBMcomputations on fine grids, as described in [1]. While this paper is restricted to a two-dimensional low-Reynolds-number flow, most of the concepts introduced here should apply to three-dimensional bio-flows.We describe here the decomposition techniques applied to the IBM, in order to decrease the computational time, in the context of the parallel Matlab toolbox of [3]. Finally, we apply the method to a blood-like suspension flow test-case.

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Copyright information

© Springer Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.FluoremEcullyFrance
  2. 2.Department of Computer ScienceUniversity of HoustonHoustonUSA

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