On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry
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- 作者：J.-T. Kima ; Z. Zhangb ; A. Liberzonc ; Y. Zhangb ; L.P. Chamorroa ; d ; e ; lpchamo@illinois.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Acceleration ; Curvature ; Jets ; Lagrangian description ; Particle Tracking Velocimetry ; Turbulence
- 刊名：Experimental Thermal and Fluid Science
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：77
- 期：Complete
- 页码：306-316
- 全文大小：4408 K
文摘
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3D PTV was employed to describe jets from circular and semi-circular pipes.
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PDF of the velocity, acceleration, and curvature revealed distinctive features.
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Velocity fluctuations PDF showed departure from Gaussian away from the core.
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Acceleration PDF exhibited heavy tails in the two jets.
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Curvature PDF revealed distinctive footprint of the pipe shape.