Mass transfer under combined natural and forced convection in a vertical flow channel: Assisting and opposing flows

The problem of combined free-forced convection and mass transfer flow over a vertical porous flat plate, in presence of heat generation and thermaldiffusion, is studied numerically. The non-linear partial differential equations and their boundary conditions, describing the problem under consideration, are transformed into a system of ordinary differential equations by using usual similarity transformations. This system is solved numerically by applying Nachtsheim-Swigert shooting iteration technique together with Runge-Kutta sixth order integration scheme. The effects of suction parameter, heat generation parameter and Soret number are examined on the flow field of a hydrogen-air mixture as a non-chemical reacting fluid pair. The analysis of the obtained results showed that the flow field is significantly influenced by these parameters.

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FORCED CONVECTION HEAT AND MASS TRANSFER FROM A CIRCULAR CYLINDER IN A HELE-SHAW CELL

Proceeding of International Heat Transfer Conference 11 ◽

10.1615/ihtc11.2510 ◽

1998 ◽

Cited By ~ 2

Author(s):

Alexander V. Gorin ◽

Dmitrii Ph. Sikovsky ◽

Tatiana N. Mikhailova ◽

Valentin A. Mukhin

Keyword(s):

Mass Transfer ◽

Circular Cylinder ◽

Heat And Mass Transfer ◽

Forced Convection ◽

Convection Heat ◽

Hele Shaw Cell

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Forced convection mass transfer: Part II. Effect of wires located near the edge of the laminar boundary layer on the rate of forced convection from a flat plate

AIChE Journal ◽

10.1002/aic.690110521 ◽

1965 ◽

Vol 11 (5) ◽

pp. 848-852 ◽

Cited By ~ 22

Author(s):

David G. Thomas

Keyword(s):

Boundary Layer ◽

Mass Transfer ◽

Flat Plate ◽

Forced Convection ◽

Laminar Boundary Layer

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Prediction of Growth Parameters of Frost Deposits in Forced Convection

Journal of Heat Transfer ◽

10.1115/1.3244426 ◽

1981 ◽

Vol 103 (1) ◽

pp. 3-6 ◽

Cited By ~ 17

Author(s):

J. E. White ◽

C. J. Cremers

Keyword(s):

Mass Transfer ◽

Forced Convection ◽

Growth Parameters ◽

Experimental Investigations ◽

Experimental Conditions ◽

Transfer Rates ◽

Air Stream ◽

Transient Period ◽

Approximate Expressions ◽

Frost Layer

Experimental investigations of frost deposition under forced convection conditions have shown that in most cases heat and mass transfer rates become constant after an initial transient period. It is shown that, in such cases, approximately half of the mass transfer from a humid air stream to a frost layer diffuses inward, condenses and increases the density of the frost. The other half is deposited at the surface and increases the thickness of the layer. Approximate expressions for density and thickness of the frost layer are derived and compared with data from the literature and also with experimental work reported in this paper. The correlations are shown to work well for a broad range of experimental conditions.

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