Bluff body edge effect on pressure-hill and zone of influence

Shouichiro Iio, Yusuke Katayama, Kaika Kimoto, Katsuya Hayashi, Shota Tsuchiya, Takuji Nakagawa, Ethirajan Rathakrishnan

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Effect of the edge geometry on the pressure-hill height and influence zone expanse for flow past a flat plate was studied in a water flow channel. The results show that, for Reynolds number below 1500 there is twin vortex just downstream the plate, from Re = 1500 to 2500 the flow behind the plate transits to become a wake. In the range of Reynolds number over which the twin vortices formed at the base of the plate transits to the wake, both the pressure-hill height and influence-zone width increase steeply. For Reynolds number below this range the edge shape effect on pressure-hill and influence-zone are only marginal. At all Reynolds numbers in the range from 1000 to 3000, the influence of flat edge is significantly higer than the sharp and semicircular edges.

Original languageEnglish
Pages (from-to)662-666
Number of pages5
JournalInternational Review of Mechanical Engineering
Issue number4
Publication statusPublished - 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Agricultural and Biological Sciences (miscellaneous)
  • Automotive Engineering
  • Materials Science (miscellaneous)


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