Dynamics of Developing Laminar Non-Newtonian Falling Liquid Films With Free Surface

[+] Author and Article Information
V. Narayanamurthy, P. K. Sarma

Department of Mechanical Engineering, Andhra University, Visakhapatnam 530 003, India

J. Appl. Mech 45(1), 19-24 (Mar 01, 1978) (6 pages) doi:10.1115/1.3424229 History: Received December 01, 1976; Revised April 01, 1977; Online July 12, 2010


The dynamics of accelerating, laminar non-Newtonian falling liquid film is analytically solved taking into account the interfacial shear offered by the quiescent gas adjacent to the liquid film under adiabatic conditions of both the phases. The results indicate that the thickness of the liquid film for the assumed power law model of the shear deformation versus the shear stress is influenced by the index n , the modified form of (Fr/Re). The mathematical formulation of the present analysis enables to treat the problem as a general type from which the special case for Newtonian liquid films can be derived by equating the index in the power law to unity.

Copyright © 1978 by ASME
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