Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept

Heat and flow pattern of a vertical free jet impinging on a hot disk were numerically investigated. A cylinder with various thicknesses and materials exposed simultaneously to uniform heat flux on one side and a free impinging jet on the other side is simulated by ANSYS Fluent 19.3. For simulations,...

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Autores principales:	Mostafa Mahdavi, Mohsen Sharifpur, Hikmet S. Aybar, Mohammad Hossein Ahmadi, Ali J. Chamkha, Maged Faihan Alotaibi, Josua P. Meyer
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	free impinging jet cooling thermal boundary condition ansys fluent heatline nanofluid Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/a9b96521ea5f4f4da2aba8e7e5ec62ce
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spelling	oai:doaj.org-article:a9b96521ea5f4f4da2aba8e7e5ec62ce2021-12-01T14:40:59ZThermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept1994-20601997-003X10.1080/19942060.2021.1997825https://doaj.org/article/a9b96521ea5f4f4da2aba8e7e5ec62ce2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/19942060.2021.1997825https://doaj.org/toc/1994-2060https://doaj.org/toc/1997-003XHeat and flow pattern of a vertical free jet impinging on a hot disk were numerically investigated. A cylinder with various thicknesses and materials exposed simultaneously to uniform heat flux on one side and a free impinging jet on the other side is simulated by ANSYS Fluent 19.3. For simulations, the thermal boundary condition on the hot surface might differ due to the nature of the heat flow. The Volume of Fluid (VOF) approach is used to model the free jet heat transfer and fluid dynamics with the presence of air, while only the energy equation is solved in the cylinder. Heatline equation is solved to reveal the heat flow direction and effects of different geometry conditions. The maximum heat flux of 2.5 MW/m2 was obtained at the edge of stagnation region for hot target made of copper, while the value was 1.5 MW/m2 when the material was combined with stainless steel. However, the general thermal and hydrodynamic features of the jet flow were not influenced. It means that hot object condition may only affect the balance between heat flux and temperature, and the ideal uniform heat flux on the impinging wall may not be achieved in any experimental conditions.Mostafa MahdaviMohsen SharifpurHikmet S. AybarMohammad Hossein AhmadiAli J. ChamkhaMaged Faihan AlotaibiJosua P. MeyerTaylor & Francis Grouparticlefree impinging jetcoolingthermal boundary conditionansys fluentheatlinenanofluidEngineering (General). Civil engineering (General)TA1-2040ENEngineering Applications of Computational Fluid Mechanics, Vol 15, Iss 1, Pp 1919-1931 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	free impinging jet cooling thermal boundary condition ansys fluent heatline nanofluid Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	free impinging jet cooling thermal boundary condition ansys fluent heatline nanofluid Engineering (General). Civil engineering (General) TA1-2040 Mostafa Mahdavi Mohsen Sharifpur Hikmet S. Aybar Mohammad Hossein Ahmadi Ali J. Chamkha Maged Faihan Alotaibi Josua P. Meyer Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
description	Heat and flow pattern of a vertical free jet impinging on a hot disk were numerically investigated. A cylinder with various thicknesses and materials exposed simultaneously to uniform heat flux on one side and a free impinging jet on the other side is simulated by ANSYS Fluent 19.3. For simulations, the thermal boundary condition on the hot surface might differ due to the nature of the heat flow. The Volume of Fluid (VOF) approach is used to model the free jet heat transfer and fluid dynamics with the presence of air, while only the energy equation is solved in the cylinder. Heatline equation is solved to reveal the heat flow direction and effects of different geometry conditions. The maximum heat flux of 2.5 MW/m2 was obtained at the edge of stagnation region for hot target made of copper, while the value was 1.5 MW/m2 when the material was combined with stainless steel. However, the general thermal and hydrodynamic features of the jet flow were not influenced. It means that hot object condition may only affect the balance between heat flux and temperature, and the ideal uniform heat flux on the impinging wall may not be achieved in any experimental conditions.
format	article
author	Mostafa Mahdavi Mohsen Sharifpur Hikmet S. Aybar Mohammad Hossein Ahmadi Ali J. Chamkha Maged Faihan Alotaibi Josua P. Meyer
author_facet	Mostafa Mahdavi Mohsen Sharifpur Hikmet S. Aybar Mohammad Hossein Ahmadi Ali J. Chamkha Maged Faihan Alotaibi Josua P. Meyer
author_sort	Mostafa Mahdavi
title	Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
title_short	Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
title_full	Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
title_fullStr	Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
title_full_unstemmed	Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
title_sort	thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/a9b96521ea5f4f4da2aba8e7e5ec62ce
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_version_	1718405012995964928

Thermal boundary condition analysis of cooling objects exposed to a free impinging jet using the heatline concept

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