This paper describes an experimental investigation of the vortex shedding phenomena in a staggered tube array with streamwise and transverse spacing to diameter ratios of 2.1 and 3.6, respectively. LDA measurements were employed to monitor the flow fluctuations and a visualization technique was implemented to reveal the underlying flow patterns in the array for steady and pulsating cross-flow. The results obtained in steady flow are in general agreement with results from previous investigations and show that vortex shedding occurs at two distinct frequencies in the front and inner rows. A lower frequency component was detected at the exit of the array, which has not been previously identified. Pulsating flow caused the frequency of vortex shedding to lock-on at the subharmonic of the imposed frequency. In the lock-on range, vortex shedding from all the tubes was synchronized and in-phase and velocity fluctuations at the shedding frequency increased considerably compared to their counterparts in steady flow.
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September 2002
Technical Papers
A Study of Vortex Shedding in a Staggered Tube Array for Steady and Pulsating Cross-Flow
E. Konstantinidis,
E. Konstantinidis
Department of Mechanical Engineering, King’s College London, Strand, London WC2R 2LS, United Kingdom
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S. Balabani,
S. Balabani
Department of Mechanical Engineering, King’s College London, Strand, London WC2R 2LS, United Kingdom
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M. Yianneskis
M. Yianneskis
Department of Mechanical Engineering, King’s College London, Strand, London WC2R 2LS, United Kingdom
11
Search for other works by this author on:
E. Konstantinidis
Department of Mechanical Engineering, King’s College London, Strand, London WC2R 2LS, United Kingdom
S. Balabani
Department of Mechanical Engineering, King’s College London, Strand, London WC2R 2LS, United Kingdom
M. Yianneskis
11
Department of Mechanical Engineering, King’s College London, Strand, London WC2R 2LS, United Kingdom
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division August 2, 2000; revised manuscript received April 2, 2002. Associate Editor: J. Bridges.
J. Fluids Eng. Sep 2002, 124(3): 737-746 (10 pages)
Published Online: August 19, 2002
Article history
Received:
August 2, 2000
Revised:
April 2, 2002
Online:
August 19, 2002
Citation
Konstantinidis , E., Balabani , S., and Yianneskis, M. (August 19, 2002). "A Study of Vortex Shedding in a Staggered Tube Array for Steady and Pulsating Cross-Flow ." ASME. J. Fluids Eng. September 2002; 124(3): 737–746. https://doi.org/10.1115/1.1487359
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