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Zero Boil-Off Tank (ZBOT) ExperimentThe Zero-Boil-Off Tank (ZBOT) experiment has been developed as a small scale ISS experiment aimed at delineating important fluid flow, heat and mass transport, and phase change phenomena that affect cryogenic storage tank pressurization and pressure control in microgravity. The experiments use a simulant transparent low boiling point fluid (PnP) in a sealed transparent Dewar to study and quantify: (a) fluid flow and thermal stratification during pressurization; (b) mixing, thermal destratification, depressurization, and jet-ullage penetration during pressure control by jet mixing. The experiment will provide valuable microgravity empirical two-phase data associated with the above-mentioned physical phenomena through highly accurate local wall and fluid temperature and pressure measurements, full-field phase-distribution and flow visualization. Moreover, the experiments are performed under tightly controlled and definable heat transfer boundary conditions to provide reliable high-fidelity data and precise input as required for validation verification of state-of-the-art two-phase CFD models developed as part of this research and by other groups in the international scientific and cryogenic fluid management communities.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Mcquillen, John
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
August 12, 2016
Publication Date
January 19, 2016
Subject Category
Fluid Mechanics And Thermodynamics
Report/Patent Number
Meeting Information
Meeting: Joint CSA/ESA/JAXA/NASA Increments 47 and 48 Science Symposium
Location: Houston, TX
Country: United States
Start Date: January 19, 2016
End Date: January 21, 2016
Sponsors: NASA Headquarters
Funding Number(s)
WBS: WBS 904211.
Distribution Limits
Work of the US Gov. Public Use Permitted.
jet mixing flow
fluid management
Fluid Flow
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