Title

Modeling and numerical prediction of flow boiling in a thin geometry

Authors

Authors

R. Kumar; C. C. Maneri;T. D. Strayer

Comments

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

Abbreviated Journal Title

J. Heat Transf.-Trans. ASME

Keywords

boiling; heat transfer; modeling; multi-phase; HEAT-TRANSFER; 2-PHASE FLOW; Thermodynamics; Engineering, Mechanical

Abstract

An analysis capability to examine the two-phase bubbly flow in high pressure boiling systems has been developed. The models have been adapted from the literature for a narrow high aspect ratio geometry using the measurements obtained in a companion paper Three-dimensional computational results have been compared with cross-section averaged and line-averaged void fractions measured with a gamma densitometer and local void fraction measured with a hot-film anemometer These comparisons have been made over a wide range of flow inlet conditions, wall heating and system pressure. Comparisons are found to be good when the flow is bubbly, but at high void fractions, where the flow is churn-turbulent or annular the two-field modeling approach does not perform adequately. This result emphasizes the need for multiple field modeling.

Journal Title

Journal of Heat Transfer-Transactions of the Asme

Volume

126

Issue/Number

1

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

22

Last Page

33

WOS Identifier

WOS:000220448500004

ISSN

0022-1481

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