Flight Results For The Multiphase Flow Experiment For Suborbital Testing Payload
Miller Hurlbert, Kathryn
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This paper provides an overview of the Multiphase Flow Experiment for Suborbital Testing (MFEST) payload flown on Virgin Galactic’s SpaceShipTwo. The NASA Johnson Space Center, Crew and Thermal Systems Division had previously developed a Space Shuttle flight experiment to test the feasibility of a biological water processor for use in zero-gravity conditions, and demonstrate sustained operation of a two-phase flow system with a passive gas/liquid separator. The MFEST is a modification to the original payload (built in the 1990’s) specifically focused on the two-phase flow system and vortex separator operations for the challenging conditions of suborbital flight (i.e., launch, zero-g, and entry with high gravity levels). MFEST completed ground and parabolic flight testing prior to proceeding to two flights on SpaceShipTwo in December 2018 and February 2019. This paper provides a description of the overall project and a summary of significant results from the flight testing.