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Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation

RLT Bevan, RW Lewis, Perumal Nithiarasu Orcid Logo

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, Volume: 22, Pages: 1120 - 1134

Swansea University Author: Perumal Nithiarasu Orcid Logo

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DOI (Published version): 10.1108/09615531211271907

Abstract

Purpose - The purpose of this paper is to numerically model forced convection heat transfer within a patient-specific carotid bifurcation and to examine the relationship between the temperature and wall shear stress.Design/methodology/approach - The procedure employs a parallel, fully explicit (matr...

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Published in: INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
Published: 2012
URI: https://cronfa.swan.ac.uk/Record/cronfa20239
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first_indexed 2015-03-03T02:59:52Z
last_indexed 2018-02-09T04:56:32Z
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spelling 2015-03-02T13:20:26.5313051 v2 20239 2015-03-02 Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 2015-03-02 CIVL Purpose - The purpose of this paper is to numerically model forced convection heat transfer within a patient-specific carotid bifurcation and to examine the relationship between the temperature and wall shear stress.Design/methodology/approach - The procedure employs a parallel, fully explicit (matrix free) characteristic based split scheme for the solution of incompressible Navier-Stokes equations.Findings - The arterial wall temperature, rather than the blood temperature dominates the regions of low wall shear stress and high oscillating shear stress. Additionally, negligible temperature gradient was detected proximal to the arterial wall in this locality.Originality/value - The presented results demonstrate a possible mechanism for cold air temperature to influence the atherosclerotic plaque region proximal to the stenosis. The proposed patient-specific heat transfer analysis also provides a starting point for the investigation of the influence of induced hypothermia on carotid plaque and its stability. Journal Article INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW 22 1120 1134 31 12 2012 2012-12-31 10.1108/09615531211271907 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2015-03-02T13:20:26.5313051 2015-03-02T13:18:43.0565051 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering RLT Bevan 1 RW Lewis 2 Perumal Nithiarasu 0000-0002-4901-2980 3
title Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
spellingShingle Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
Perumal Nithiarasu
title_short Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
title_full Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
title_fullStr Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
title_full_unstemmed Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
title_sort Forced convection heat transfer within a moderately-stenosed, patient-specific carotid bifurcation
author_id_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d
author_id_fullname_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
author Perumal Nithiarasu
author2 RLT Bevan
RW Lewis
Perumal Nithiarasu
format Journal article
container_title INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
container_volume 22
container_start_page 1120
publishDate 2012
institution Swansea University
doi_str_mv 10.1108/09615531211271907
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 0
active_str 0
description Purpose - The purpose of this paper is to numerically model forced convection heat transfer within a patient-specific carotid bifurcation and to examine the relationship between the temperature and wall shear stress.Design/methodology/approach - The procedure employs a parallel, fully explicit (matrix free) characteristic based split scheme for the solution of incompressible Navier-Stokes equations.Findings - The arterial wall temperature, rather than the blood temperature dominates the regions of low wall shear stress and high oscillating shear stress. Additionally, negligible temperature gradient was detected proximal to the arterial wall in this locality.Originality/value - The presented results demonstrate a possible mechanism for cold air temperature to influence the atherosclerotic plaque region proximal to the stenosis. The proposed patient-specific heat transfer analysis also provides a starting point for the investigation of the influence of induced hypothermia on carotid plaque and its stability.
published_date 2012-12-31T03:23:37Z
_version_ 1760855449661341696
score 10.937382

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