Title

Modeling And Numerical Prediction Of Flow Boiling In A Thin Geometry

Keywords

Boiling; Heat transfer; Modeling; Multi-phase

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. © 2004 by ASME.

Publication Date

2-1-2004

Publication Title

Journal of Heat Transfer

Volume

126

Issue

1

Number of Pages

22-33

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/1.1643754

Socpus ID

2342504625 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/2342504625

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