Journal
JOURNAL OF BIOMECHANICS
Volume 47, Issue 1, Pages 137-147Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jbiomech.2013.09.030
Keywords
Low-density lipoprotein transport; Multi-layered arterial wall; Porous media; Hyperthermia; FSI; Osmosis; Soret and Dufour effect
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The effects of hyperthermia, coupling attributes and property variations on Low-density lipoprotein (LDL) transport within a multi-layered wall while accounting for the fluid structure interaction (FSI) is analyzed in this work. To understand the potential impact of the hyperthermia process, thermo-induced attributes are incorporated, accounting for the plasma flow, mass transfer, as well as the elastic wall structure. The coupling effect of osmotic pressure, Soret and Dufour diffusion is discussed and their influence on LDL transport is examined, demonstrating that only the Soret effect needs to be accounted for. The effect of thermal expansion on changing the behavior of flow, mass transport, and elastic structure is illustrated and analyzed while incorporating the variations in the effective LDL diffusivity and consumption rate, as well as other dominating parameters. It is shown that hyperthermia results in an enhancement in LDL transport by increasing the concentration levels within the arterial wall. (C) 2013 Elsevier Ltd. All rights reserved.
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