Three-dimensional vortex flow near the endwall of a short cylinder in crossflow: Uniform-diameter circular cylinder

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Publication Details

Author list: Chen S.B., Sanitjai S., Ghosh K., Goldstein R.J.

Publisher: Elsevier

Publication year: 2012

Volume number: 49

Start page: 73

End page: 78

Number of pages: 6

ISSN: 1359-4311

eISSN: 1873-5606

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84866434724&doi=10.1016%2fj.applthermaleng.2011.10.061&partnerID=40&md5=c5db808c5829458e2c7dbf443c7750fd

Languages: English-Great Britain (EN-GB)

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Abstract

Flow characteristics, around a short uniform-diameter circular cylinder in crossflow, are investigated experimentally. Extensive flow visualization using oil-lampblack and smoke-wire methods have been performed. Near-wake velocity measurements have been performed using a hotwire anemometer. Complex secondary flows are observed on and around the cylinder in crossflow. Multiple vortices are observed in the horseshoe vortex system near the cylinder-endwall junction. Based on this flow visualization and local mass transfer measurement results, a six-vortex secondary flow model has been proposed. ฉ 2011 Elsevier Ltd. All rights reserved.

Keywords

Circular cylinder, Crossflow, End effects