A study of viscous cross-flow effects on circular cylinders at high Reynolds numbers

Author(s):  
W. JAMES ◽  
S. PARIS ◽  
G. MALCOLM
Author(s):  
Shan Huang ◽  
Neil Kitney

Towing tank model tests at high Reynolds numbers, up to 1.1×106, were carried out in order to investigate the effects of the triple-starting helical grooves on drag reduction of smooth and rough circular cylinders in uniform cross flow. In total, four cylinders were tested including smooth and rough cylinders with and without helical grooves.


1975 ◽  
Vol 97 (2) ◽  
pp. 110-117
Author(s):  
P. Y. Chen ◽  
P. E. Doepker

The nearness of a cylinder to a wall has an important effect on the flow-induced forces exerted on that cylinder, particularly when the cylinder is relatively large compared to the cross section of the flow channel. This paper describes an investigation of wall interference effects that occur when crossflow-induced forces are exerted on circular cylinders with moderately large blockages (d/h = 0.2 to 0.33) at high Reynolds numbers (3.5 × 105 – 1.2 × 106). The results show that, within the range studied, the gap flow velocity is the correct flow velocity to compensate for wall interference effects. The data reported here represent the first available information on experimental cross-flow-induced forces at such high Reynolds numbers using water as a flow medium.


2012 ◽  
Vol 43 (5) ◽  
pp. 589-613
Author(s):  
Vyacheslav Antonovich Bashkin ◽  
Ivan Vladimirovich Egorov ◽  
Ivan Valeryevich Ezhov ◽  
Sergey Vladimirovich Utyuzhnikov

2015 ◽  
Vol 94 ◽  
pp. 140-154 ◽  
Author(s):  
M. Belloli ◽  
S. Giappino ◽  
S. Morganti ◽  
S. Muggiasca ◽  
A. Zasso

AIAA Journal ◽  
1980 ◽  
Vol 18 (9) ◽  
pp. 1066-1072 ◽  
Author(s):  
W. D. James ◽  
S. W. Paris ◽  
G. N. Malcolm

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