Meteor plasmas and impact events are complex, dynamic natural phenomena. Simulating
these processes in the laboratory is, however, a challenge. The technique of laser induced …

It is hypothesized that spallation could affect the aerodynamic heating rates of reentry
vehicles using ablative heat shields. To investigate spallation effects, a code is developed to …

The multidimensional geometric effects within the heat shield of the Stardust sample return
capsule are studied over its reentry trajectory, using a material response solver. The solver …

The geometric effects of iso-Q sample–a geometry that is widely used in arc-jet experiments–
were numerically studied on charring ablative materials under arc-jet conditions. The …

Ablative material response codes currently in use consider local thermal equilibrium
between the solid phases and the pyrolysis gases. For typical entry conditions, this …

Lagrangian particles can be used either to analyze different complex flows, as massless
tracers, or to model multiphase flows, as particles with mass. As particles can have arbitrary …

A comparison between three chemistry models used for the aerothermodynamic modeling of
carbon-based phenolic ablative heat shields in atmospheric air is presented. The …

DURING hyperbolic planetary entry, spacecraft can attain entry speeds of 10–16 km/s, which
results in high surface heat fluxes and intense radiation in the shock layer. The heat flux …

The spallation phenomenon was studied through numerical analysis using a coupled
Lagrangian particle tracking code and a hypersonic aerothermodynamics computational …

The goal of this study is to evaluate the effects of different models for calculating the mixture
transport properties on flowfield predictions of ablative heat shields. The Stardust sample …