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Two Phase Flow Modeling: Summary of Flow Regimes and Pressure Drop Correlations in Reduced and Partial GravityThe purpose of this report is to provide a summary of state-of-the-art predictions for two-phase flows relevant to Advanced Life Support. We strive to pick out the most used and accepted models for pressure drop and flow regime predictions. The main focus is to identify gaps in predictive capabilities in partial gravity for Lunar and Martian applications. Following a summary of flow regimes and pressure drop correlations for terrestrial and zero gravity, we analyze the fully developed annular gas-liquid flow in a straight cylindrical tube. This flow is amenable to analytical closed form solutions for the flow field and heat transfer. These solutions, valid for partial gravity as well, may be used as baselines and guides to compare experimental measurements. The flow regimes likely to be encountered in the water recovery equipment currently under consideration for space applications are provided in an appendix.
Document ID
20060008906
Acquisition Source
Glenn Research Center
Document Type
Contractor Report (CR)
Authors
Balasubramaniam, R.
(National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Rame, E.
(National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Kizito, J.
(National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Kassemi, M.
(National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2006
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
NASA/CR-2006-214085
E-15422
Report Number: NASA/CR-2006-214085
Report Number: E-15422
Funding Number(s)
WBS: WBS 22-010-53-01
CONTRACT_GRANT: NCC3-975
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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