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Paper Information

Journal:   SCIENTIA IRANICA   2014 , Volume 21 , Number 3 (TRANSACTIONS A: CIVIL ENGINEERING); Page(s) 548 To 556.
 
Paper: 

DISPERSION AROUND A CIRCULAR CYLINDER IN SURFACE WAVE MOTION

 
 
Author(s):  TOFIGHI M.A., JAMALI M.*
 
* DEPARTMENT OF CIVIL ENGINEERING, SHARIF UNIVERSITY OF TECHNOLOGY, TEHRAN , IRAN
 
Abstract: 

In this paper, we examine uid ow and associated dispersion around a circular cylinder under progressive surface wave motion. The ow eld and vortex shedding patterns were studied using ow visualization and Particle Image Velocimetry (PIV). Several patterns of vortex shedding were identi ed around a single cylinder. The vortex shedding patterns under progressive wave motion are similar to those observed in planar oscillatory ow, except in the way the vortices form and in the orientation they take. The observed vortex patterns in progressive wave motion are more unstable than those in planar oscillatory ow. Using particle tracking and the Lagrangian dispersion method, the dispersion coecients were calculated for various ow regimes. The observations con rm the calculations in general. It was also found that wave steepness can aect the shedding pattern. The vortices tend to shed more frequently in a wave direction at low wave steepness.

 
Keyword(s): WATER WAVES, FLOW VISUALIZATION, PARTICLE IMAGE VELOCIMETRY, LAGRANGIAN DISPERSION
 
 
References: 
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Click to Cite.
APA: Copy

TOFIGHI, M., & JAMALI, M. (2014). DISPERSION AROUND A CIRCULAR CYLINDER IN SURFACE WAVE MOTION. SCIENTIA IRANICA, 21(3 (TRANSACTIONS A: CIVIL ENGINEERING)), 548-556. https://www.sid.ir/en/journal/ViewPaper.aspx?id=406746



Vancouver: Copy

TOFIGHI M.A., JAMALI M.. DISPERSION AROUND A CIRCULAR CYLINDER IN SURFACE WAVE MOTION. SCIENTIA IRANICA. 2014 [cited 2021May07];21(3 (TRANSACTIONS A: CIVIL ENGINEERING)):548-556. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=406746



IEEE: Copy

TOFIGHI, M., JAMALI, M., 2014. DISPERSION AROUND A CIRCULAR CYLINDER IN SURFACE WAVE MOTION. SCIENTIA IRANICA, [online] 21(3 (TRANSACTIONS A: CIVIL ENGINEERING)), pp.548-556. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=406746.



 
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