Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction
In this study, the heat transfer and flow physics of Abdominal Aortic Aneurysm (AAA) were discussed and associated with cardiac cycle to illustrate the cardiac thermal pulse (CTP) of AAA. A CTP and IRT evaluation-based on AAA and abdomen skin surface detection method was proposed respectively. The i...
Saved in:
Main Author: | |
---|---|
Other Authors: | |
Format: | Final Year Project |
Language: | English |
Published: |
Nanyang Technological University
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/158801 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-158801 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-1588012022-05-24T23:57:19Z Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction Looi, Jun Cong Ng Yin Kwee School of Mechanical and Aerospace Engineering MYKNG@ntu.edu.sg Engineering::Mathematics and analysis::Simulations Science::Physics::Heat and thermodynamics In this study, the heat transfer and flow physics of Abdominal Aortic Aneurysm (AAA) were discussed and associated with cardiac cycle to illustrate the cardiac thermal pulse (CTP) of AAA. A CTP and IRT evaluation-based on AAA and abdomen skin surface detection method was proposed respectively. The identification of AAA for each scenario was done by evaluating the CTP of abdominal aorta wall. Under regular body temperature, AAA of FSI Analysis did not have a CTP that responded to systole phase which shown in CFD rigid-body analysis. In contrast, the healthy abdominal aorta in CFD rigid-body analysis had a CTP which responded to the entire cardiac cycle, including diastolic phase. As the body experiences fever or stage-2 hypothermia, result from CFD rigid-body analysis indicates that the AAA wall would achieve thermal equilibrium, with blood temperature at a quasi-linear relationship. Yet, at the healthy abdominal aorta, there is CTP detected. Besides, from CFD rigid-body and FSI Analysis, the bioheat transfer effect resulted in a circular thermal elevation on the temperature profile of midriff skin surface patient, at both regular body temperature and supine position, under normal clinical temperature. These findings then correlated the relationship between natural convective heat transfer coefficient with AAA and provided reference for potential clinical diagnostic using infrared thermography (IRT). Bachelor of Engineering (Aerospace Engineering) 2022-05-23T05:04:16Z 2022-05-23T05:04:16Z 2022 Final Year Project (FYP) Looi, J. C. (2022). Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/158801 https://hdl.handle.net/10356/158801 en B163 application/pdf Nanyang Technological University |
institution |
Nanyang Technological University |
building |
NTU Library |
continent |
Asia |
country |
Singapore Singapore |
content_provider |
NTU Library |
collection |
DR-NTU |
language |
English |
topic |
Engineering::Mathematics and analysis::Simulations Science::Physics::Heat and thermodynamics |
spellingShingle |
Engineering::Mathematics and analysis::Simulations Science::Physics::Heat and thermodynamics Looi, Jun Cong Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
description |
In this study, the heat transfer and flow physics of Abdominal Aortic Aneurysm (AAA) were discussed and associated with cardiac cycle to illustrate the cardiac thermal pulse (CTP) of AAA. A CTP and IRT evaluation-based on AAA and abdomen skin surface detection method was proposed respectively. The identification of AAA for each scenario was done by evaluating the CTP of abdominal aorta wall. Under regular body temperature, AAA of FSI Analysis did not have a CTP that responded to systole phase which shown in CFD rigid-body analysis. In contrast, the healthy abdominal aorta in CFD rigid-body analysis had a CTP which responded to the entire cardiac cycle, including diastolic phase. As the body experiences fever or stage-2 hypothermia, result from CFD rigid-body analysis indicates that the AAA wall would achieve thermal equilibrium, with blood temperature at a quasi-linear relationship. Yet, at the healthy abdominal aorta, there is CTP detected. Besides, from CFD rigid-body and FSI Analysis, the bioheat transfer effect resulted in a circular thermal elevation on the temperature profile of midriff skin surface patient, at both regular body temperature and supine position, under normal clinical temperature. These findings then correlated the relationship between natural convective heat transfer coefficient with AAA and provided reference for potential clinical diagnostic using infrared thermography (IRT). |
author2 |
Ng Yin Kwee |
author_facet |
Ng Yin Kwee Looi, Jun Cong |
format |
Final Year Project |
author |
Looi, Jun Cong |
author_sort |
Looi, Jun Cong |
title |
Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
title_short |
Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
title_full |
Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
title_fullStr |
Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
title_full_unstemmed |
Study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
title_sort |
study of bioheat transfer and cardiac thermal pulse of aneurysm in the abdominal aortic using computational fluid dynamic and fluid structure interaction |
publisher |
Nanyang Technological University |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/158801 |
_version_ |
1734310343921893376 |