Flow around a confined cylinder

LES and PIV study

Journal article (2017)

Authors

Egor Palkin Russian Academy of Sciences, Novosibirsk State University
Mikhail Shestakov Russian Academy of Sciences, Novosibirsk State University
Dmitriy M. Markovich Russian Academy of Sciences, Novosibirsk State University
K. Hanjalic ChemE/Transport Phenomena - AS , Novosibirsk State University
Research Group
ChemE/Transport Phenomena (AS) (TU Delft)
Copyright: © 2017 Egor Palkin, Mikhail Shestakov, Rustam Mullyadzhanov, Dmitry Markovich, K. Hanjalic
DOI: https://doi.org/10.1051/matecconf/201711502010
More Info
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Published Date

10-07-2017

Language

English

Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Transport Phenomena

Abstract

We study the flow over a cylinder placed between two parallel rigid walls using Large-eddy simulations and Particle Image Velocimetry. The Reynolds number based on the inflow velocity and diameter of the cylinder is 3750 corresponding to the subcritical regime with laminar separation. Three-dimensional visualization shows the presence of the horseshoe vortex system prior to the cylinder. The comparison of time-averaged velocity fields and fluctuations shows good agreement between simulations and experiments. Spectral analysis suggests the presence of low-frequency modulations of the recirculating bubble.