A Framework for the Numerical Simulation of Early Stage Aneurysm Development with the Lattice Boltzmann Method

J. Bernsdorf (), J. Qi (), H. Klimach () and S. Roller ()
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J. Bernsdorf: German Research School for Simulation Sciences GmbH
J. Qi: German Research School for Simulation Sciences GmbH
H. Klimach: German Research School for Simulation Sciences GmbH
S. Roller: German Research School for Simulation Sciences GmbH

A chapter in Sustained Simulation Performance 2012, 2013, pp 115-122 from Springer

Abstract: Abstract In this paper, we describe a new approach towards numerical simulation of flow induced early stage development of cerebral aneurysm. The wall shear stress gradient, computed by a CFD simulation inside a bifurcating flow channel, triggers a physiological process leading to the remodelling, and in the worst case, degeneration of the vessel walls. The lattice Boltzmann method, extended by a generic vessel wall model to allow an efficient modification of the flow geometry during run-time, is employed for simulating the modification of the vessel wall, which is considered as initial step for aneurysm formation. First results presented here show a thinning of the vessel wall at locations left and right of the apex of the bifurcation, in good agreement with experimental studies.

Keywords: Wall Shear Stress; Lattice Boltzmann Method; Cerebral Aneurysm; Lattice Boltzmann; High Wall Shear Stress (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-32454-3_10

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DOI: 10.1007/978-3-642-32454-3_10

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