Numerical study of vortex shedding suppression using confined cylinder

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Published: Mar 26, 2021
DOI: https://doi.org/10.14456/apst.2021.8
Keywords:
Confined cylinder Fluid-induced instability Numerical study Vortex shedding

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Milad Heidari
Zahrapanah Razaviyan
Faculty of Engineering, Persian Gulf University, Boushehr, Iran
Fatemeh A. Talebbeigi
Faculty of Engineering, Persian Gulf University, Boushehr, Iran
Pooyan Rahmanivahid
Mechanical Engineering and Vehicle Technology Department, Global College of Engineering and ‎Technology (GCET), Muscat, Sultanate of Oman

Abstract

The application of cylindrical objects, such as pipelines and risers, in the marine industry is irresistible. Vortex shedding in wake flow downstream blunt bodies may cause vibrations, which result in structural failures in case of closeness or matching natural frequencies. This study aims to explore the effects of geometrical arrangements on the suppression of vortex shedding phenomena. Cylinders of different diameters and pitch distances are used to change the flow dynamics. The flow is considered to be incompressible and steady. A numerical study of flow passing a single cylinder with various diameters and two unequal cylinders with varying pitch distances is conducted. Results show a complete vortex suppression at δ/D=4. These results are expected to be useful for the verification of computational models of unsteady Newtonian flows.

Article Details

How to Cite
Heidari, M., Razaviyan, Z. ., Talebbeigi, F. A., & Rahmanivahid, P. . (2021). Numerical study of vortex shedding suppression using confined cylinder. Asia-Pacific Journal of Science and Technology, 26(01), APST–26. https://doi.org/10.14456/apst.2021.8
Issue
Vol. 26 No. 01 (2021): JAN-MAR
Section
Research Articles

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