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Experimental study of the impingement of a liquid jet on the surface of a heavier liquid

Published online by Cambridge University Press:  28 March 2006

Robert B. Banks  and
Anusornant Bhavamai
Robert B. Banks
Affiliation:
SEATO Graduate School of Engineering, Bangkok, Thailand
Anusornant Bhavamai
Affiliation:
SEATO Graduate School of Engineering, Bangkok, Thailand
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Extract

This study is concerned with the phenomenon of a liquid jet impinging normally on the surface of a heavier immiscible liquid. In essence, the work is a continuation of a previous investigation which involved an air jet impinging on a water surface.

An analytical model is presented which relates the velocity of the jet in the neighbourhood of the interface to the depth of cavity created by the jet. The effect of interfacial tension is taken into account. Numerous experiments were conducted utilizing both circular and plane jets. An oil jet impinging on water and a water jet impinging on carbon tetrachloride were studied. The resulting experimental data were analysed in terms of the dimensionless quantities obtained from the analytical model.

Results obtained from the circular-jet experiments were in close agreement with the results of the previously conducted air-water tests. However, there were some discrepancies in the plane-jet results; side-wall boundary-layer effects may be the explanation. Depending on the relative values of the Froude and Weber numbers, interfacial tension may be important in determining the depth of cavity created by a jet. Finally two intriguing phenomena, viz. interfacial shearing and cavity oscillation, were observed in the plane-jet experiments.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 23 , Issue 2 , October 1965 , pp. 229 - 240
Copyright
Copyright © Cambridge University Press 1965

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Footnotes

†

Now at the University of Illinois at Chicago Circle

‡

Now at the Department of Public and Municipal Works, Bangkok

References

Banks, R. B. 1962 Proc. Conf. on Hydraulics and Fluid Mech. (ed. Silvester, R.), p. 111. Univ. of Western Australia, Nedlands. Oxford: Pergamon Press.Google Scholar
Banks, R. B. & Chandrasekhara, D. V. 1963 J. Fluid Mech. 15, 13.CrossRefGoogle Scholar
Corrsin, S. & Uberoi, M. S. 1949 NACA TN no. 1865.Google Scholar
Maatsch, J. 1962 Tech. Mitt. Krupp, 20, 1.Google Scholar
Olmstead, W. E. & Raynor, S. 1964 J. Fluid Mech. 19, 561.CrossRefGoogle Scholar