The influence of the staggering position of a rotating rod on flow past a main circular cylinder is investigated numerically. The rod is rotated at a constant speed ratio of 3. The effect of the diameter ratio of the rotating rod is studied by considering two different diameter ratios. The investigation is carried out at a fixed pitch length of 1. The study is carried out for two Reynolds number, viz., 100 and 500. The momentum injection from the rod is found to alter the flow characteristics behind the main cylinder. For a certain arrangement of stagger angle and diameter ratio, the vortex shedding behind the main cylinder gets suppressed. The corresponding configuration for which minimum drag coefficient is achieved is suggested from this study.
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March 2008
Research Papers
Influence of Staggering Angle of a Rotating Rod on Flow Past a Circular Cylinder
T. Ayyappan,
T. Ayyappan
Research Scholar
Department of Applied Mechanics,
IIT Madras
, Chennai 600036, India
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S. Vengadesan
S. Vengadesan
Assistant Professor
Search for other works by this author on:
T. Ayyappan
Research Scholar
Department of Applied Mechanics,
IIT Madras
, Chennai 600036, India
S. Vengadesan
Assistant Professor
J. Fluids Eng. Mar 2008, 130(3): 031103 (11 pages)
Published Online: March 3, 2008
Article history
Received:
January 22, 2007
Revised:
October 27, 2007
Published:
March 3, 2008
Citation
Ayyappan, T., and Vengadesan, S. (March 3, 2008). "Influence of Staggering Angle of a Rotating Rod on Flow Past a Circular Cylinder." ASME. J. Fluids Eng. March 2008; 130(3): 031103. https://doi.org/10.1115/1.2842224
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