COMPARISON OF TURBULENT KINETIC ENERGY IN THE WAKE REGION OF MODIFIED CIRCULAR CYLINDERS

Flow properties and wake structures behind bluff bodies was one of the interesting topics between scholars for many years. Such interest in this phenomenon is due to various applications of bluff bodies in engineering and industry. In this study a comparison of flow structures of the wake of circula...

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Bibliographic Details
Published inWIT Transactions on Engineering Sciences Vol. 128; p. 39
Main Authors Shiri, Hamidreza, HACISEVKI, HASAN
Format Journal Article
LanguageEnglish
Published Southampton W I T Press 10.11.2020
Subjects
Bluff bodies
Circular cylinders
Cliffs
Fluid dynamics
Kinetic energy
Reynolds stress
Shear layers
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Summary:Flow properties and wake structures behind bluff bodies was one of the interesting topics between scholars for many years. Such interest in this phenomenon is due to various applications of bluff bodies in engineering and industry. In this study a comparison of flow structures of the wake of circular cylinder, semi-circular and c shape cylinders have been presented. The wake flows have been compared in terms of shedding frequency, Reynolds stress and turbulent kinetic energy (TKE) to identify any similarities between these geometries. It was found that the highest value of TKE occurred on either side of the separated shear layer. Moreover, it was observed that as the TKE develops in the downstream the peaks were shifted towards centerline in the wake region.
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ISSN:1746-4471
1743-3533
DOI:10.2495/AFM200041