Title

Film-Boiling Drag And Heat-Transfer On A Flat Surface

Title - Alternative

Numer. Heat Tranf. A-Appl.

Keywords

CONVECTION; Thermodynamics; Mechanics

Abstract

Stable film-boiling flow along a vertical flat plate is analyzed theoretically for a water-steam system at atmospheric pressure. This numerical study indicates that skin friction drag on the plate in a film-boiling flow may increase or decrease relative to the single-phase (all liquid) flow level and that the wall heat transfer coefficient always deteriorates in a film-boiling flow. Subcooling promotes wall heat transfer but may increase or decrease the wall skin friction beyond the single-phase flow level. Adverse streamwise buoyancy force (simulated by downward film-boiling flow) acting on the vapor film will separate the vapor flow.

Publication Title

Numerical Heat Transfer Part a-Applications

Volume

19

Issue/Number

3

Publication Date

1-1-1991

Document Type

Article

Language

English

First Page

327

Last Page

344

WOS Identifier

WOS:A1991FH43700005

ISSN

1040-7782

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