An Experimental Investigation of the Surface Pressure Fluctuations for Round Cylinders

R. Maryami; M. Azarpeyvand; A. A. Dehghan; A. Afshari

doi:10.1115/1.4042036

An Experimental Investigation of the Surface Pressure Fluctuations for Round Cylinders

R. Maryami, M. Azarpeyvand, A. A. Dehghan, A. Afshari

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Abstract

An experimental study is carried out to investigate the unsteady pressure exerted on the surface of a round cylinder in the subcritical Reynolds number range. Results are presented for the surface pressure fluctuations, spanwise coherence, lateral correlation length, and peripheral coherence. Discussions are provided for the dominance of the first three vortex shedding tones at different regions of the cylinder and the size of the flow structures around the cylinder. The dataset provided have shed new light on the unsteady aerodynamic loading acting on cylinders and provides the impetus for further research on the aerodynamics and aeroacoustics of bluff bodies.

Original language	English
Article number	061203
Number of pages	11
Journal	Journal of Fluids Engineering
Volume	141
Issue number	6
Early online date	24 Dec 2018
DOIs	https://doi.org/10.1115/1.4042036
Publication status	Published - 1 Jun 2019

Keywords

aeroacoustics
aerodynamics
Turbulence

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This is the submitted manuscript (SM). The final published version (version of record) is available online via ASME at http://fluidsengineering.asmedigitalcollection.asme.org/article.aspx?articleid=2716485 . Please refer to any applicable terms of use of the publisher.
Submitted manuscript, 1.78 MBLicence: CC BY-NC-ND

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abstract = "An experimental study is carried out to investigate the unsteady pressure exerted on the surface of a round cylinder in the subcritical Reynolds number range. Results are presented for the surface pressure fluctuations, spanwise coherence, lateral correlation length, and peripheral coherence. Discussions are provided for the dominance of the first three vortex shedding tones at different regions of the cylinder and the size of the flow structures around the cylinder. The dataset provided have shed new light on the unsteady aerodynamic loading acting on cylinders and provides the impetus for further research on the aerodynamics and aeroacoustics of bluff bodies.",

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AB - An experimental study is carried out to investigate the unsteady pressure exerted on the surface of a round cylinder in the subcritical Reynolds number range. Results are presented for the surface pressure fluctuations, spanwise coherence, lateral correlation length, and peripheral coherence. Discussions are provided for the dominance of the first three vortex shedding tones at different regions of the cylinder and the size of the flow structures around the cylinder. The dataset provided have shed new light on the unsteady aerodynamic loading acting on cylinders and provides the impetus for further research on the aerodynamics and aeroacoustics of bluff bodies.

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KW - aerodynamics

KW - Turbulence

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An Experimental Investigation of the Surface Pressure Fluctuations for Round Cylinders

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