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Q1(Year 2015)
ISSN : 1026-3098
e-ISSN : 2345-3605
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Publication Information : Volume 23 - Number 5 - Successive Number 5
Type : Article
Topics of Paper : Transaction on Mechanical Engineering
English Title : Features of flow past a circular cylinder with a slit
English Abstract : The impact of a slit placed along a circular cylinder diameter, which is parallel to the incoming flow, is numerically investigated in order to nd a geometric modi cation that can help drag reduction, as well as vortex suppression, without any additional energy consumption. The drag reduction is achieved by diverting part of the fluid in the front stagnation region into the low pressure zone at the back of cylinder through the slit. The Reynolds number based on the cylinder diameter, D, ranges from 60 to 250. The e ect of the slit width ratio (s=D) on the drag and lift coecients, the Strouhal number, and the wake flow feature of the cylinder is presented. Favorable reduction of drag and lift coecients is observed with the rising of slit width ratio. The vortex shedding generated from the slit alters the wake flow thoroughly and drives the vortex shedding derived from the cylinder surface to further downstream.
English Keywords : Passive control; Cylinder with a slit; Vortex suppression; Drag and lift coecients; Strouhal number.
Refrences :
Number Of Pages :
From 2097 to 2112


Authors :
The AuthorAuthor SequenceOrganizationOrganization ( english )AffiliationEmailEducation
W. Jian Sheng 1Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, MOE, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China.    
W. Chen
(Author)
2School of Mechanical Engineering, Department of Mechanics, Tianjin University, Tianjin 300072, China.    
Published Issues
2017
Transactions on Civil Engineering
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Transactions on Industrial Engineering
2016
2015
Transactions on Civil Engineering
Transactions on Mechanical Engineering
Transactions on Chemistry and Chemical Engineering
Transactions on Computer Science & Engineering and Electrical Engineering
Transactions on Industrial Engineering
Transactions on Nanotechnology
2014
Transactions on Civil Engineering
Transactions on Mechanical Engineering
Transactions on Chemistry and Chemical Engineering
Transactions on Computer Science & Engineering and Electrical Engineering
Transactions on Industrial Engineering
Transactions on Nanotechnology
2013
Transactions on Civil Engineering
Transactions on Mechanical Engineering
Transactions on Chemistry and Chemical Engineering
Transactions on Computer Science & Engineering and Electrical Engineering
Transactions on Industrial Engineering
Transactions on Nanotechnology

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