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Showing 1 to 5 of 5 for “"hypersonic reentry"”.
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A new parabolized Navier-Stokes scheme for hypersonic reentry flows
… Mach number, low-Reynolds number (high-altitude) reentry flowfield predictions are an important problem area in computational aerothermodynamics. Available numerical tools for handling such flows are very few and significantly limited in their applicability. A new implicit fully-iterative …
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Experimental Design of Electrophilic Gas Injection System for Plasma Blackout Mitigation during Hypersonic Reentry
Radio communication blackout during hypersonic reentry has been a prolonged issue for all planetary missions. Though blackout mitigation techniques were investigated heavily in the 1960s and 1970s, the lack of fidelity in computational tools and integrated ground/flight testing with adequate …
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Investigation of nanoscale mechanisms driving erosion and pitting in graphitic carbon
… rates of Thermal Protection Systems (TPS) during hypersonic reentry. The extreme heat and unique gas phase chemistry encountered during hypersonic reentry necessitates an analysis of the oxidation mechanisms at these conditions. Despite extensive research, the nanoscale mechanisms that facilitate …
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Hypersonic nonequilibrium flow over an ablating teflon surface
… teflon/air mixture over an axisymmetric decoy at hypersonic reentry flight conditions has been analyzed by using the nonequilibrium viscous shock-layer method. The equilibrium catalytic wall boundary condition was used to obtain the species concentration at the wall. The species conservation …
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Continuum breakdown assessment and state-based transport modeling for non-equilibrium hypersonic flows
… used for predicting flowfield properties during hypersonic (re)entry of space vehicles into planetary atmospheres. Commonly employed numerical approaches for simulating the thermal and chemical non-equilibrium encountered in these high speed flows are multi-temperature computational fluid …