Title

Subcooled Forced Convection Film Boiling Drag And Heat Transfer Of A Wedge

Title - Alternative

J. Thermophys. Heat Transf.

Keywords

Thermodynamics; Engineering, Mechanical

Abstract

Subcooled laminar forced convection film boiling flow on a wedge is analyzed considering the streamwise pressure gradient imposed on the flow and the streamwise buoyancy force acting on the vapor film. A two-phase boundary-layer model is proposed, and the local similarity concept is applied to obtain an approximate solution of the governing equations. For a water-steam system at atmospheric pressure considered within this study, wall skin friction results display a strong dependency on the streamwise buoyancy force driving the vapor film and the external pressure gradient. Adverse streamwise buoyancy force acting on the vapor film, which is the case on the lower surface of a horizontally aligned wedge, may cause vapor flow separation. In contrast to wall skin friction dependency, the wall heat transfer parameter shows a secondary dependence on the streamwise pressure gradient and the buoyancy force.

Publication Title

Journal of Thermophysics and Heat Transfer

Volume

5

Issue/Number

3

Publication Date

1-1-1991

Document Type

Article

Language

English

First Page

355

Last Page

365

WOS Identifier

WOS:000208449300013

ISSN

0887-8722

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