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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   MARCH 2017 , Volume 16 , Number 12 ; Page(s) 12 To 20.
 
Paper: 

FLOW CONTROL AND DRAG REDUCTION OF CIRCULAR CYLINDER USING MOVING SURFACES BY TWO-DIMENSIONAL SIMULATION

 
 
Author(s):  SALIMIPOUR SEYED ERFAN*
 
* MECHANICAL ENGINEERING DEPARTMENT, QUCHAN UNIVERSITY OF ADVANCED TECHNOLOGY, QUCHAN, IRAN
 
Abstract: 

Flow around a circular cylinder placed in an incompressible uniform stream is investigated via twodimensional numerical simulation in the present study. Some parts of the cylinder are replaced with moving surfaces, which can control the boundary layer growth. Then, the effects of the moving surfaces locations on the power and drag coefficients are studied at various surface speeds. The flow Reynolds number is varied from 60 to 180. To simulate the fluid flow, the unsteady Navier-Stokes equations are solved by a finite volume pressure-velocity coupling method with second-order accuracy in time and space which is called RK-SIMPLER. In order to validate the present written computer code, some results are compared with previous numerical data, and very good agreement is obtained. The results from this study show that some of these surfaces reduce the drag coefficients and the coefficient of the total power requirements of the system motion. The optimum location and the speed of the surfaces which cause the minimizing the power coefficient are also obtained. By observing the results it is found that in all Reynolds numbers, the minimum power coefficient or in other words, the optimum drag coefficient occurs at surface angle of 700.

 
Keyword(s): CIRCULAR CYLINDER, MOVING SURFACES, BOUNDARY LAYER, POWER COEFFICIENT, DRAG COEFFICIENT
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

SALIMIPOUR, S. (2017). FLOW CONTROL AND DRAG REDUCTION OF CIRCULAR CYLINDER USING MOVING SURFACES BY TWO-DIMENSIONAL SIMULATION. MODARES MECHANICAL ENGINEERING, 16(12 ), 12-20. https://www.sid.ir/en/journal/ViewPaper.aspx?id=572420



Vancouver: Copy

SALIMIPOUR SEYED ERFAN. FLOW CONTROL AND DRAG REDUCTION OF CIRCULAR CYLINDER USING MOVING SURFACES BY TWO-DIMENSIONAL SIMULATION. MODARES MECHANICAL ENGINEERING. 2017 [cited 2021August04];16(12 ):12-20. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572420



IEEE: Copy

SALIMIPOUR, S., 2017. FLOW CONTROL AND DRAG REDUCTION OF CIRCULAR CYLINDER USING MOVING SURFACES BY TWO-DIMENSIONAL SIMULATION. MODARES MECHANICAL ENGINEERING, [online] 16(12 ), pp.12-20. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572420.



 
 
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