Computational study of periodically unsteady interaction between a wall jet and an offset jet for various velocity ratios
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- 作者：Tanmoy Mondal ; Abhijit Guha ; Manab Kumar Das ; manab@mech.iitkgp.ernet.in" class="auth_mail" title="E-mail the corresponding author ; drmanab@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Wall jet ; Offset jet ; Unsteady RANS ; Velocity ratio ; Periodic vortex shedding ; Strouhal number
- 刊名：Computers and Fluids
- 出版年：2015
- 出版时间：21 December 2015
- 年：2015
- 卷：123
- 期：Complete
- 页码：146-161
- 全文大小：4662 K
文摘
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Unsteady flow characteristics are investigated for various values of the velocity ratio Vr.
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Near-field demonstrates von Karman-like vortices when Vr lies in the range 0.78–1.34.
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When 0.77 ≤ Vr or Vr ≥ 1.35, the flow field remains steady.
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Within the range 0.78 ≤ Vr ≤ 1.34, Strouhal number increases with increase in Vr.