Liquid jet leaping from a free surface

Jun Zou; Fangye Lin; Chen Ji; Min Pan

doi:10.1063/1.4994601

Liquid jet leaping from a free surface

Jun Zou, Fangye Lin, Chen Ji, Min Pan

Department of Mechanical Engineering

Zhejiang University

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Abstract

We investigate the characteristics of a liquid jet ejected from an inclined tube, which is submerged immediately under a free surface. Jets are classified into three regimes: the curtain regime, transition regime, and column regime. In all regimes, the jet trajectories deviate from the standard projectile function. An important reason is that additive liquid is entrained from the bulk. The capillary force also contributes to the deviation in the curtain regime. Models are established to predict the horizontal distance that a jet travels above the free surface in the curtain regime and column regime.

Original language	English
Article number	071702
Journal	Physics of Fluids
Volume	29
Issue number	7
DOIs	https://doi.org/10.1063/1.4994601
Publication status	Published - 14 Jul 2017

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10.1063/1.4994601

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This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Physics of Fluids 29, 071702 (2017) and may be found at https://doi.org/10.1063/1.4994601
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title = "Liquid jet leaping from a free surface",

abstract = "We investigate the characteristics of a liquid jet ejected from an inclined tube, which is submerged immediately under a free surface. Jets are classified into three regimes: the curtain regime, transition regime, and column regime. In all regimes, the jet trajectories deviate from the standard projectile function. An important reason is that additive liquid is entrained from the bulk. The capillary force also contributes to the deviation in the curtain regime. Models are established to predict the horizontal distance that a jet travels above the free surface in the curtain regime and column regime.",

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AB - We investigate the characteristics of a liquid jet ejected from an inclined tube, which is submerged immediately under a free surface. Jets are classified into three regimes: the curtain regime, transition regime, and column regime. In all regimes, the jet trajectories deviate from the standard projectile function. An important reason is that additive liquid is entrained from the bulk. The capillary force also contributes to the deviation in the curtain regime. Models are established to predict the horizontal distance that a jet travels above the free surface in the curtain regime and column regime.

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Liquid jet leaping from a free surface

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