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Paper Information

Journal:   JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR)   WINTER 2010 , Volume 41 , Number 2; Page(s) 37 To 46.
 
Paper: 

HEAT TRANSFER ENHANCEMENT FROM A FLAT PLATE BY VORTEX SHEDDING BEHIND A TRIANGULAR OBSTACLE

 
 
Author(s):  KAHROM M.*, ZAFARMAND B., JAVADI S.M., EXIER A.
 
* 
 
Abstract: 

In this paper development of turbulent flow around a triangular obstacle, its vortex generation and resulting effect on neighboring turbulent boundary layer of a flat plat, are studied. Vortex shedding controlled in size and position by changing side length and relevant angles of the triangle. The distance from the plate changed gradually from a point stuck to the plate to points far inside the free stream. As a result in each step, a stagnation point forms on frontal area, a jet at the beneath of the obstacle and one, two or three vortices after the rear face. Each of flow developments contributes to local heat transfer coefficient of neighboring flat plate. Most effective part seems to be the last vortex at downstream to the obstacle. Its local contribution to total enhancement is about 80% when total heat transfer compared to that of a single flat plate of a similar flow field. The overall heat transfer enhancement over the affected area is about 60%.

 
Keyword(s): HEAT TRANSFER ENHANCEMENT, VORTEX SHEDDING, WAKE, STAGNATION POINT
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

KAHROM, M., & ZAFARMAND, B., & JAVADI, S., & EXIER, A. (2010). HEAT TRANSFER ENHANCEMENT FROM A FLAT PLATE BY VORTEX SHEDDING BEHIND A TRIANGULAR OBSTACLE. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), 41(2), 37-46. https://www.sid.ir/en/journal/ViewPaper.aspx?id=335233



Vancouver: Copy

KAHROM M., ZAFARMAND B., JAVADI S.M., EXIER A.. HEAT TRANSFER ENHANCEMENT FROM A FLAT PLATE BY VORTEX SHEDDING BEHIND A TRIANGULAR OBSTACLE. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR). 2010 [cited 2021November30];41(2):37-46. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=335233



IEEE: Copy

KAHROM, M., ZAFARMAND, B., JAVADI, S., EXIER, A., 2010. HEAT TRANSFER ENHANCEMENT FROM A FLAT PLATE BY VORTEX SHEDDING BEHIND A TRIANGULAR OBSTACLE. JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR), [online] 41(2), pp.37-46. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=335233.



 
 
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