Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins
The flow and heat transfer characteristics inside a rectangular channel embedded with pin fins were numerically and experimentally investigated. Several differently shaped pin fins (i.e., circular, elliptical, and drop-shaped) with the same cross-sectional areas were compared in a staggered arrangem...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2012-12-01
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| Series: | Propulsion and Power Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212540X12000041 |
| _version_ | 1797707174207553536 |
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| author | Fengming Wang Jingzhou Zhang Suofang Wang |
| author_facet | Fengming Wang Jingzhou Zhang Suofang Wang |
| author_sort | Fengming Wang |
| collection | DOAJ |
| description | The flow and heat transfer characteristics inside a rectangular channel embedded with pin fins were numerically and experimentally investigated. Several differently shaped pin fins (i.e., circular, elliptical, and drop-shaped) with the same cross-sectional areas were compared in a staggered arrangement. The Reynolds number based on the obstructed section hydraulic diameter (defined as the ratio of the total wetted surface area to the open duct volume available for flow) was varied from 4800 to 8200. The more streamlined drop-shaped pin fins were better at delaying or suppressing separation of the flow passing through them, which decreased the aerodynamic penalty compared to circular pin fins. The heat transfer enhancement of the drop-shaped pin fins was less than that of the circular pin fins. In terms of specific performance parameters, drop-shaped pin fins are a promising alternative configuration to circular pin fins. |
| first_indexed | 2024-03-12T06:03:27Z |
| format | Article |
| id | doaj.art-15d217f538ea4c8cb93b357da6ebf0b5 |
| institution | Directory Open Access Journal |
| issn | 2212-540X |
| language | English |
| last_indexed | 2024-03-12T06:03:27Z |
| publishDate | 2012-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Propulsion and Power Research |
| spelling | doaj.art-15d217f538ea4c8cb93b357da6ebf0b52023-09-03T03:52:58ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2012-12-0111647010.1016/j.jppr.2012.10.003Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin finsFengming Wang0Jingzhou Zhang1Suofang Wang2Research Institute on General Development and Evaluation of Equipment, EAAF of PLA, Beijing 100076, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe flow and heat transfer characteristics inside a rectangular channel embedded with pin fins were numerically and experimentally investigated. Several differently shaped pin fins (i.e., circular, elliptical, and drop-shaped) with the same cross-sectional areas were compared in a staggered arrangement. The Reynolds number based on the obstructed section hydraulic diameter (defined as the ratio of the total wetted surface area to the open duct volume available for flow) was varied from 4800 to 8200. The more streamlined drop-shaped pin fins were better at delaying or suppressing separation of the flow passing through them, which decreased the aerodynamic penalty compared to circular pin fins. The heat transfer enhancement of the drop-shaped pin fins was less than that of the circular pin fins. In terms of specific performance parameters, drop-shaped pin fins are a promising alternative configuration to circular pin fins.http://www.sciencedirect.com/science/article/pii/S2212540X12000041Enhanced heat transferPin finsDrop-shaped pin finsPressure lossSpecific friction loss |
| spellingShingle | Fengming Wang Jingzhou Zhang Suofang Wang Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins Propulsion and Power Research Enhanced heat transfer Pin fins Drop-shaped pin fins Pressure loss Specific friction loss |
| title | Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins |
| title_full | Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins |
| title_fullStr | Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins |
| title_full_unstemmed | Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins |
| title_short | Investigation on flow and heat transfer characteristics in rectangular channel with drop-shaped pin fins |
| title_sort | investigation on flow and heat transfer characteristics in rectangular channel with drop shaped pin fins |
| topic | Enhanced heat transfer Pin fins Drop-shaped pin fins Pressure loss Specific friction loss |
| url | http://www.sciencedirect.com/science/article/pii/S2212540X12000041 |
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