An Experimental Study of Natural Convection Mass Transfer Along a Vertical Plate With Surface Injection

[+] Author and Article Information
G. B. Lewis

Ethicon Inc., Division of Johnson and Johnson, Somerville, N. J.

J. L. Novotny, K. T. Yang

Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Ind.

J. Heat Transfer 99(3), 446-452 (Aug 01, 1977) (7 pages) doi:10.1115/1.3450716 History: Received March 10, 1977; Online August 11, 2010


Laminar isothermal natural-convection mass transfer along a porous vertical plate in an aqueous sodium chloride solution with uniform surface injection of pure water at the plate surface is investigated experimentally by means of a Mach-Zehnder interferometer. Grashof numbers for the mass transfer system range from 0.253 × 104 to 0.858 × 107 ; the surface injection velocities are from 0.519 × 10−4 cm/s to 0.937 × 10−3 cm/s; and Schmidt numbers cover a range from 582 to 643. Steady concentration profiles and rate of surface mass transfer have been obtained, and are compared with the theoretical result based on a similarity solution with matched surface concentration distribution, Grashof and Schmidt numbers, and surface injection rate.

Copyright © 1977 by ASME
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