COMPARISON OF LES WITH DSM, k-ε AND EXPERIMENTS FORTURBULENT VORTEX SHEDDING FLOW PAST 2D SQUARE CYLINDER

1994 ◽  
Vol 59 (459) ◽  
pp. 49-56 ◽  
Author(s):  
Shigehiro SAKAMOTO ◽  
Akashi MOCHIDA ◽  
Shuzo MURAKAMI ◽  
Wolfgang RODI
Keyword(s):  
Vortex Shedding ◽  
Square Cylinder ◽  
Flow Past

Numerical study of vortex shedding in viscoelastic flow past an unconfined square cylinder

2015 ◽  
Vol 27 (3) ◽  
pp. 213-225 ◽  
Author(s):  
Mahmood Norouzi ◽  
Seyed Rasoul Varedi ◽  
Mahdi Zamani
Keyword(s):  
Vortex Shedding ◽  
Numerical Study ◽  
Viscoelastic Flow ◽  
Square Cylinder ◽  
Flow Past

scholarly journals Visualization of flow past square cylinders with corner modification

2020 ◽  
Vol 4 (3) ◽  
pp. 285-294
Author(s):  
Ch. Krishnappa Vikram ◽  
H. V. Ravindra ◽  
Y. T. Krishnegowda
Keyword(s):  
Aluminum Powder ◽  
Experimental Work ◽  
Vortex Shedding ◽  
Test Section ◽  
Square Cylinder ◽  
Square Cylinders ◽  
Flow Past ◽  
Spacing Ratio ◽  
Vortex Shedding Frequency ◽  
Shedding Frequency

This article presents the results for flow past a square cylinder and two square cylinders of the same and different sizes with corner modifications by varying the spacing ratio. Here, experimental work is conducted in a recirculatory channel filled with water. A set of aluminum discs made to rotate to create the flow in the test section. The motor is used to vary the speed of the water. Fine aluminum powder is used as a tracer medium. It is observed that vortex shedding frequency decreases by placing the second cylinder in the downstream of the first cylinder. For similar size cylinders, the width of the eddy in the middle of the cylinders increases with an increase in spacing ratio. With the increase of spacing ratio to 6, the flow past each cylinder behaves like a single square cylinder. If the upstream square cylinder size is smaller than the downstream square cylinder, the eddy size is reduced in between the cylinder compared to the downstream of the second cylinder. If the upstream square cylinder size is bigger than the downstream square cylinder, the eddy size is larger in between the cylinder compared to the downstream of the second cylinder.

scholarly journals A computational study of drag reduction and vortex shedding suppression of flow past a square cylinder in presence of small control cylinders

AIP Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 045119 ◽  
Author(s):  
Shams-Ul. Islam ◽  
Raheela Manzoor ◽  
Zia-Ul. Islam ◽  
Shazia Kalsoom ◽  
Zhou Chao Ying
Keyword(s):  
Drag Reduction ◽  
Vortex Shedding ◽  
Computational Study ◽  
Square Cylinder ◽  
Flow Past
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