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Accurate and efficient computations of phase-changing flows in thermal vapor compressors
Cited 7 time in
Web of Science
Cited 8 time in Scopus
- Authors
- Issue Date
- 2018-01
- Publisher
- Pergamon Press Ltd.
- Citation
- Applied Thermal Engineering, Vol.128, pp.320-334
- Abstract
- This paper focuses on the limitations of single-phase computations which have been widely applied to the numerical simulations of flow fields around thermal vapor compressors (TVCs), and provides computational improvements through multi-phase flow modeling and analysis. In order to capture the multi-phase flow physics accurately and provide reliable results, several numerical methods and models, including the shock-stable multi-phase AUSMPW+ scheme, phase-changing models, cell-by-cell adaptive mesh refinement technique, and the IAPWS-97 equation of states, are combined into a numerical solver. We then simulate various TVC systems and compare the computed system performance and local flow physics between the single- and multi-phase computations. Based on the computational results and comparisons, we examine phase-changing process and its influence on two major local physical features, namely shock-train region and shear layer.
- ISSN
- 1359-4311
- Language
- English
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