Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms
Simulating and analyzing thermal behavior in the human body is crucial for various biomedical applications. The skin, composed of multiple layers, is connected to the vascular bed, which comprises venules and capillaries. Blood, the body's primary thermoregulator, flows towards the tissue throu...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25000711 |
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| author | K.R. Sreegowrav R. Indira Sushma M. Puranik S. Jagadeesha S.J. Vishwanatha K. Ganesh Kumar |
| author_facet | K.R. Sreegowrav R. Indira Sushma M. Puranik S. Jagadeesha S.J. Vishwanatha K. Ganesh Kumar |
| author_sort | K.R. Sreegowrav |
| collection | DOAJ |
| description | Simulating and analyzing thermal behavior in the human body is crucial for various biomedical applications. The skin, composed of multiple layers, is connected to the vascular bed, which comprises venules and capillaries. Blood, the body's primary thermoregulator, flows towards the tissue through capillaries and away through venules. These blood vessels, separated by a thin layer of tissue, prevent mixing while enabling efficient heat exchange. Understanding this counterflow mechanism is vital for studying heat transfer within the vascular bed. In this study, the capillary, tissue, and venule are modeled as regions 1, 2, and 3, respectively, forming a three-layered rectangular channel. Heat transfer occurs via diffusion through the semi-permeable tissue layer, with slip conditions applied at its interface. The bioheat transport equation, combined with the Navier-Stokes equation, governs the thermal and fluid behavior. Analytical expressions for velocity are derived for all regions, while the temperature distribution, transformed into integral equations, is solved numerically. The resulting system of linear equations provides insights into the thermal dynamics within the vascular bed, with findings represented graphically. |
| format | Article |
| id | doaj-art-2c25a9c0e03745799b1ea09f4b03b6b6 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-2c25a9c0e03745799b1ea09f4b03b6b62025-02-03T04:16:43ZengElsevierCase Studies in Thermal Engineering2214-157X2025-03-0167105811Numerical study of bioheat transfer in a vascular bed with counter-flow mechanismsK.R. Sreegowrav0R. Indira1Sushma M. Puranik2S. Jagadeesha3S.J. Vishwanatha4K. Ganesh Kumar5School of Applied Sciences, REVA University, Bengaluru - 560064, Karnataka, IndiaDepartment of Mathematics, Nitte Meenakshi Institute of Technology, Bengaluru, 560s064, IndiaDepartment of Mathematics, RV Institute of Technology and Management, Bengaluru, 560076, IndiaDepartment of Mathematics, Nitte Meenakshi Institute of Technology, Bengaluru, 560s064, IndiaDepartment of Mechanical Engineering, NMAM Institute of Technology, (Nitte Deemed to be University), Nitte, Karkala, India; Corresponding author.Department of Mathematics, NMAM Institute of Technology, Nitte (Deemed to be University), Nitte, Karkala, India; Corresponding author.Simulating and analyzing thermal behavior in the human body is crucial for various biomedical applications. The skin, composed of multiple layers, is connected to the vascular bed, which comprises venules and capillaries. Blood, the body's primary thermoregulator, flows towards the tissue through capillaries and away through venules. These blood vessels, separated by a thin layer of tissue, prevent mixing while enabling efficient heat exchange. Understanding this counterflow mechanism is vital for studying heat transfer within the vascular bed. In this study, the capillary, tissue, and venule are modeled as regions 1, 2, and 3, respectively, forming a three-layered rectangular channel. Heat transfer occurs via diffusion through the semi-permeable tissue layer, with slip conditions applied at its interface. The bioheat transport equation, combined with the Navier-Stokes equation, governs the thermal and fluid behavior. Analytical expressions for velocity are derived for all regions, while the temperature distribution, transformed into integral equations, is solved numerically. The resulting system of linear equations provides insights into the thermal dynamics within the vascular bed, with findings represented graphically.http://www.sciencedirect.com/science/article/pii/S2214157X25000711Counter flowCapillariesVascular bedVenuleBioheat transfer |
| spellingShingle | K.R. Sreegowrav R. Indira Sushma M. Puranik S. Jagadeesha S.J. Vishwanatha K. Ganesh Kumar Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms Case Studies in Thermal Engineering Counter flow Capillaries Vascular bed Venule Bioheat transfer |
| title | Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms |
| title_full | Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms |
| title_fullStr | Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms |
| title_full_unstemmed | Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms |
| title_short | Numerical study of bioheat transfer in a vascular bed with counter-flow mechanisms |
| title_sort | numerical study of bioheat transfer in a vascular bed with counter flow mechanisms |
| topic | Counter flow Capillaries Vascular bed Venule Bioheat transfer |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25000711 |
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