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Showing 1 to 4 of 4 for “"Hypersonic entry"”.
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An analysis of the static and dynamic characteristics of a decoupled landing entry vehicle
… of the static and dynamic characteristics of an entry vehicle utilizing the decoupled landing concept has been conducted. A hypersonic arbitrary-body aerodynamic computer program was used to determine the aerodynamics of the basic body. Three theories were used and compared with data obtained for …
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An Iterative LQR Method for Addressing Model Uncertainty in the Mars Entry Problem
… Mars presents significant challenges to the entry, landing and descent sequence. Missions including sample return and human exploration require precise landing accuracy. Additionally, entry vehicle dynamics and atmospheric parameters at time of flight are hard to predict. This along with the …
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Modeling of high enthalpy flows for hypersonic re-entry and ground-based arc-jet testing
… high enthalpy ionized gas flows during planetary entry flights and ground-based arc-jet testing. The system of Favre-averaged Navier-Stokes equations in thermo-chemical non-equilibrium with Spalart-Allmaras turbulence closure is outlined, along with models for thermodynamics, chemical kinetics, …
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Characterization of carbon ablators for hypersonic thermal protection systems
Hypersonic entry of a planetary atmosphere is among the most demanding environments in engineering, where a vehicle's kinetic energy is rapidly converted to thermal energy, generating extreme heat and caustic chemical conditions that rapidly destroy even the most advanced materials. Surviving such …