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Showing 1 to 3 of 3 for “"Supersonic retropropulsion"”.
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Hypersonic flight strategies for supersonic retropropulsion at Mars
… technology. High-mass missions will likely use supersonic retropropulsion to increase landed mass, a paradigm shift from current supersonic parachute systems. This work explores hypersonic flight strategies appropriate for use with supersonic retropropulsion systems at Mars. Optimal control …
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Characterization of Onset and Transition to Instability in Supersonic Retropropulsion
There is a need in supersonic retropropulsion (SRP) to understand the characteristics of shock unsteadiness and the parameters that determine transition to unsteady regimes. Data collected in the NASA Unitary Wind Tunnel were studied to determine instability characteristics in shocks as angle of …
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Optimal lift and drag modulation hypersonic control options for high ballistic coefficient entry vehicles at Mars
… Mars EDL technology relies heavily on Viking-era supersonic parachutes that are approaching their landed mass limits; however, supersonic retropropulsion (SRP) is a promising replacement for parachutes. Minimizing the propellant mass fraction (PMF) for SRP would enable larger payload masses. …