Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit
This study aimed to determine the flow structures and heat transfer for flow past a tandem cylinder array and the effect of a slit on the enhancement of heat transfer. Different distances between cylinders and inclination angles of the slit were simulated to determine the effects on the flow pattern...
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Online Access: | https://www.mdpi.com/1996-1073/14/2/308 |
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doaj-1bf58613a039468586e0f2f2007aa3622021-01-09T00:01:30ZengMDPI AGEnergies1996-10732021-01-011430830810.3390/en14020308Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a SlitLi-Chieh Hsu0Che-Wei Liang1Department of Mechanical Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, TaiwanDepartment of Mechanical Engineering, National Yunlin University of Science and Technology, 123 University Road, Section 3, Douliou, Yunlin 64002, TaiwanThis study aimed to determine the flow structures and heat transfer for flow past a tandem cylinder array and the effect of a slit on the enhancement of heat transfer. Different distances between cylinders and inclination angles of the slit were simulated to determine the effects on the flow pattern and heat transfer. Overall, the Nusselt number of the array is increased by 6–15% with applying a slit on a cylinder. However, in some special conditions, the slit induces two kinds of flow pattern transforms which are Suppression and Revival. The suppression mode inhibits the vortex shedding and reduces the heat transfer. In contrast, the revival mode triggers the vortex shedding and increases heat transfer.https://www.mdpi.com/1996-1073/14/2/308tandemcylinderslitenhanced heat transfer |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li-Chieh Hsu Che-Wei Liang |
spellingShingle |
Li-Chieh Hsu Che-Wei Liang Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit Energies tandem cylinder slit enhanced heat transfer |
author_facet |
Li-Chieh Hsu Che-Wei Liang |
author_sort |
Li-Chieh Hsu |
title |
Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit |
title_short |
Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit |
title_full |
Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit |
title_fullStr |
Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit |
title_full_unstemmed |
Heat Transfer in Flow Past Two Cylinders in Tandem and Enhancement with a Slit |
title_sort |
heat transfer in flow past two cylinders in tandem and enhancement with a slit |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2021-01-01 |
description |
This study aimed to determine the flow structures and heat transfer for flow past a tandem cylinder array and the effect of a slit on the enhancement of heat transfer. Different distances between cylinders and inclination angles of the slit were simulated to determine the effects on the flow pattern and heat transfer. Overall, the Nusselt number of the array is increased by 6–15% with applying a slit on a cylinder. However, in some special conditions, the slit induces two kinds of flow pattern transforms which are Suppression and Revival. The suppression mode inhibits the vortex shedding and reduces the heat transfer. In contrast, the revival mode triggers the vortex shedding and increases heat transfer. |
topic |
tandem cylinder slit enhanced heat transfer |
url |
https://www.mdpi.com/1996-1073/14/2/308 |
work_keys_str_mv |
AT lichiehhsu heattransferinflowpasttwocylindersintandemandenhancementwithaslit AT cheweiliang heattransferinflowpasttwocylindersintandemandenhancementwithaslit |
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