Fluid/thermal/chemical non-equilibrium simulation of hypersonic reentry vehicles

Aerothermoelastic Simulation of Air-Breathing Hypersonic Vehicles

This paper describes the development and implementation of a partitioned-based, multiphysics, multi-fidelity simulation framework for flexible hypersonic vehicles. This simulation framework will enable the study of the dominant physics needed for the generation of control-oriented models and will provide a reference model for flight control evaluation. A partitioned-based solution is employed t...

Numerical Simulation of Weakly Ionized Hypersonic Flow for Reentry Configurations

Numerical simulations of axisymmetric flows over reentry configurations at hypersonic conditions using a Navier-Stokes solver are presented. The Navier-Stokes equations are modified using Park’s two-temperature model to account for thermochemical nonequilibrium and weak ionization effects. The finite-volume method is used to solve the set of differential equations. The code has the capability t...

Numerical Study of Non - Equilibrium Air Dissociation For Calculation of Electron Density in Hypersonic Flow

Non-certainty equivalence adaptive tracking control for hypersonic vehicles

The design of a novel non-certainty equivalence adaptive control system for hypersonic vehicles is presented, based on the immersion and invariance (I&I) theory. The interest here is to achieve a robust trajectory tracking of the reference commands in spite of large parameter uncertainties. The architecture of the whole control system is constructed by decomposing the vehicle model into the vel...

Computation of Catalycity Eeects in Hypersonic Non-equilibrium Flows

The eeects of nite-rate wall catalyticity are evaluated by numerical simulations of hypersonic non-equilibrium ows. Several models derived from speciic gas surface chemical schemes taking into account elementary steps, such as adsorption, surface recombination and desorption, are considered. The models have been incorporated in a mixed nite-element//nite-volume code for reactive viscous ow as s...