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Splash jet generated by collision of twoliquid wedges

Published online by Cambridge University Press:  20 November 2013

Y. A. Semenov ,
G. X. Wu  and
J. M. Oliver
Y. A. Semenov
Affiliation:
Department of Mechanical Engineering, University College London, London WC1E 6BT, UK
G. X. Wu*
Affiliation:
Department of Mechanical Engineering, University College London, London WC1E 6BT, UK
J. M. Oliver
Affiliation:
Mathematical Institute, University of Oxford, 24-29 St Giles, Oxford OX1 3LB, UK
*
†Email address for correspondence: g.wu@ucl.ac.uk
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Abstract

A complete nonlinear self-similar solution that characterizes the impact of two liquid wedges symmetric about the velocity direction is obtained assuming the liquid to be ideal and incompressible, with negligible surface tension and gravity effects. Employing the integral hodograph method, analytical expressions for the complex potential and for its derivatives are derived. The boundary value problem is reduced to two integro-differential equations in terms of the velocity modulus and angle to the free surface. Numerical results are presented in a wide range of wedge angles for the free surface shapes, streamline patterns, and pressure distributions. It is found that the splash jet may cause secondary impacts. The regions with and without secondary impacts in the plane of the wedge angles are determined.

JFM classification

Drops and Bubbles: Breakup/coalescence Mathematical Foundations: General fluid mechanics

Information

Type
Papers
Information
Journal of Fluid Mechanics , Volume 737 , 25 December 2013 , pp. 132 - 145
Copyright
©2013 Cambridge University Press 

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