Transient Thermal Spreading From a Circular Heat Source in Polygonal Flux TubesSource: ASME Journal of Heat and Mass Transfer:;2024:;volume( 146 ):;issue: 007::page 71402-1DOI: 10.1115/1.4064830Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study develops a numerical simulation to assess transient constriction resistance in various semi-infinite flux channel geometries, including circle on circle, triangle, square, pentagon, and hexagon, which are derived from various heat source arrangements in a large domain. Using both isothermal and isoflux circular heat sources in polygonal flux channels, and employing a finite volume method, the study evaluates transient constriction resistance. The research confirms that for different geometries, similar nondimensionalized constriction resistance results are obtained, particularly when using the square root of the source area as the characteristic length and the square root of the constriction area ratio. The study reveals that flux tube shape has a minimal impact on thermal spreading resistance, with the circle-on-triangle configuration displaying the largest deviation from a simple circle-on-circle model. These insights advance our understanding of thermal spreading resistance in polygonal flux channels and their applications in thermal engineering, especially in contact heat transfer problems.
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contributor author | Goudarzi, Sahar | |
contributor author | Lam, Lisa S. | |
contributor author | S. Muzychka, Yuri | |
contributor author | Naterer, Greg F. | |
date accessioned | 2024-04-24T22:29:36Z | |
date available | 2024-04-24T22:29:36Z | |
date copyright | 3/20/2024 12:00:00 AM | |
date issued | 2024 | |
identifier issn | 2832-8450 | |
identifier other | ht_146_07_071402.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4295321 | |
description abstract | This study develops a numerical simulation to assess transient constriction resistance in various semi-infinite flux channel geometries, including circle on circle, triangle, square, pentagon, and hexagon, which are derived from various heat source arrangements in a large domain. Using both isothermal and isoflux circular heat sources in polygonal flux channels, and employing a finite volume method, the study evaluates transient constriction resistance. The research confirms that for different geometries, similar nondimensionalized constriction resistance results are obtained, particularly when using the square root of the source area as the characteristic length and the square root of the constriction area ratio. The study reveals that flux tube shape has a minimal impact on thermal spreading resistance, with the circle-on-triangle configuration displaying the largest deviation from a simple circle-on-circle model. These insights advance our understanding of thermal spreading resistance in polygonal flux channels and their applications in thermal engineering, especially in contact heat transfer problems. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Transient Thermal Spreading From a Circular Heat Source in Polygonal Flux Tubes | |
type | Journal Paper | |
journal volume | 146 | |
journal issue | 7 | |
journal title | ASME Journal of Heat and Mass Transfer | |
identifier doi | 10.1115/1.4064830 | |
journal fristpage | 71402-1 | |
journal lastpage | 71402-8 | |
page | 8 | |
tree | ASME Journal of Heat and Mass Transfer:;2024:;volume( 146 ):;issue: 007 | |
contenttype | Fulltext |