Numerical simulations of the flow around a finite-height circular cylinder under turbulent-Reference-Cited by-同舟云学术

Numerical simulations of the flow around a finite-height circular cylinder under turbulent

Published:2023 Issue:Spec. issue 1 Volume:27 Page:173-184
ISSN:0354-9836
Container-title:Thermal Science
language:en
Short-container-title:THERM SCI

Author:

Ying Yuxiang¹,Jiang Tongxiao¹,Nie Deming¹

Affiliation:

1. Institute of Fluid Mechanics, China Jiliang University, Hanghzou, China

Abstract

To investigate the 3-D characteristics of the flow around a finite-height circular cylinder, this study was based on the CFD technology. The flow was numerically simulated between Re = 1000 and 10000 using the large eddy simulation method to verify and analyze the results. Comparing the instantaneous contours of vorticity for different heights at the same Reynolds number, it can be seen that the free end influences vortex shedding. The instantaneous contours of vorticity for a complete period of vortex shedding were analyzed to explain the causes of lift force generation. Analysis of the effect of Reynolds numbers on the Strohal number was done. The analysis focused on the wake structure of the column at Re = 1000 and Re = 10000, and a significant difference was found between the two cases.

Publisher

National Library of Serbia

Subject

Renewable Energy, Sustainability and the Environment

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