Journal article
NUMERICAL STUDY OF BOILING AND NATURAL CONVECTION IN CAPILLARY POROUS MEDIA USING THE TWO-PHASE MIXTURE MODEL
Numerical heat transfer. Part A, Applications, Vol.26(4), pp.375-398
10/01/1994
DOI: 10.1080/10407789408955999
Abstract
A newly developed two-phase mixture model is applied, in conjunction with a control-volume-based finite difference method, to numerically investigate boiling with thermal convection in a porous layer heated from below. The numerical procedure employs a fixed grid and avoids tracking explicitly the moving interface between the liquid and two-phase regions. Numerical results are obtained to shed light on the intricate interactions between boiling and natural convection as well as to explain experimental observations. Four distinct flow patterns that were observed in previous experiments are predicted. A quantitative comparison of the predicted and measured vapor volume fraction in the porous bed shows good agreement. The numerical results also agree with published linear stability results. In addition, the present study documents the effects of important parameters such as Rayleigh number, bottom heat flux, and aspect ratio.
Details
- Title: Subtitle
- NUMERICAL STUDY OF BOILING AND NATURAL CONVECTION IN CAPILLARY POROUS MEDIA USING THE TWO-PHASE MIXTURE MODEL
- Creators
- C. Y Wang - Department of Mechanical Engineering , University of IowaC Beckermann - Department of Mechanical Engineering , University of IowaC Fan - Department of Mechanical Engineering , University of Iowa
- Resource Type
- Journal article
- Publication Details
- Numerical heat transfer. Part A, Applications, Vol.26(4), pp.375-398
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/10407789408955999
- ISSN
- 1040-7782
- eISSN
- 1521-0634
- Language
- English
- Date published
- 10/01/1994
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064233702771
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