Convective thermal model formulation of a three dimensional vascular system with simplified blood flow paths: Temperature distributions during hyperthermia

Persistent Link:
http://hdl.handle.net/10150/278140
Title:
Convective thermal model formulation of a three dimensional vascular system with simplified blood flow paths: Temperature distributions during hyperthermia
Author:
Huang, Huang-Wen, 1965-
Issue Date:
1992
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The development and verification of thermal models for use in hyperthermia treatment planning is essential for obtaining accurate predictions of temperature fields. This thesis presents a three-dimensional blood vessel network constructed from connected straightline segments. The geometry of this convective thermal model is an (approximate) cube. The model contains seven levels of different size arterial vessels. The calculations of the mean blood temperature inside the vessels are based on the convective energy balance equation for the bulk fluid temperature. The adjacent tissue temperature calculations are based on either pure conduction heat transfer or the bioheat transfer equation of Pennes (22). The validity of the convective thermal model is checked by comparing it's predictions to those of an analytical solution for a single vessel, and by checking the energy balance calculations of the whole control volume. The results show that the level-7 arteries still contribute a large percentage of the total heat transfer rate between the blood vessels and the surrounding tissues; and values of the Nusselt number being either 10% higher or 10% lower than 4 do not strongly affect the temperature field.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Engineering, Biomedical.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Roemer, Robert B.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleConvective thermal model formulation of a three dimensional vascular system with simplified blood flow paths: Temperature distributions during hyperthermiaen_US
dc.creatorHuang, Huang-Wen, 1965-en_US
dc.contributor.authorHuang, Huang-Wen, 1965-en_US
dc.date.issued1992en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe development and verification of thermal models for use in hyperthermia treatment planning is essential for obtaining accurate predictions of temperature fields. This thesis presents a three-dimensional blood vessel network constructed from connected straightline segments. The geometry of this convective thermal model is an (approximate) cube. The model contains seven levels of different size arterial vessels. The calculations of the mean blood temperature inside the vessels are based on the convective energy balance equation for the bulk fluid temperature. The adjacent tissue temperature calculations are based on either pure conduction heat transfer or the bioheat transfer equation of Pennes (22). The validity of the convective thermal model is checked by comparing it's predictions to those of an analytical solution for a single vessel, and by checking the energy balance calculations of the whole control volume. The results show that the level-7 arteries still contribute a large percentage of the total heat transfer rate between the blood vessels and the surrounding tissues; and values of the Nusselt number being either 10% higher or 10% lower than 4 do not strongly affect the temperature field.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEngineering, Biomedical.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRoemer, Robert B.en_US
dc.identifier.proquest1348516en_US
dc.identifier.bibrecord.b27590458en_US
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