Title

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

Authors

Authors

P. R. Chappidi; F. S. Gunnerson;K. O. Pasamehmetoglu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

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.

Journal 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

Share

COinS