Reduced Gravity Experiments to Advance CFD Boiling Models for Cryogenic Fluid Management Systems
PI: Emilio Baglietto, See overview for Co-Investigators (Co-I), Massachusetts Institute of Technology
PI: Emilio Baglietto, See overview for Co-Investigators (Co-I), Massachusetts Institute of Technology
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Phase change in cryogenic propellants is inevitable and its accurate modeling is critical for future long-duration, crewed space missions. Mission designers currently lack robust, validated CFD models of cryogenic fluid storage or transfer in reduced gravity that would offer predictive simulations of boiling heat transfer.Poor boiling models lead to higher margins in launch propellant and safety considerations, leading both to higher launch mass and cost.Simulations like this would support the optimal design of propellant systems.
MIT has already demonstrated the feasibility of leveraging backlit shadowgraphy and total internal reflection (TIR)to visualize and measure fundamental boiling parameters such as nucleation site densities, bubble departure diameters,as well as frequencies and characteristics of the microlayers and bubble footprints in a lab environment. Parabolic flight tests will demonstrate the cryogenic fuel boiloff simulation in microgravity, maturing the technology to TRL 6.
•Future NASA missions, including Artemis
•Commercial space exploration missions
•Lunar propellant transfer stations
Technology Details
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Selection DateTechFlights20 (Sep 2020)
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Program StatusActive
- 2 Parabolic
Development Team
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PIEmilio BagliettoSee overview for Co-Investigators (Co-I)
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Organization
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Sponsor