Heavy Particle Impact Vibrational Excitation and Dissociation Processes in CO2

J Vargas, B Lopez, M Lino da Silva - The Journal of Physical …, 2021 - ACS Publications
A heavy particle impact vibrational excitation and dissociation model for CO2 is presented.
This state-to-state model is based on the forced harmonic oscillator (FHO) theory, which is …

[HTML][HTML] Aerothermodynamic analysis of Neptune ballistic entry and aerocapture flows

J Coelho, ML da Silva - Advances in Space Research, 2023 - Elsevier
An aerothermodynamic analysis of representative aerocapture (29 km/s) and entry (18 km/s)
flows in Neptune is discussed. Two 60° and 45° sphere-cone shapes are considered, and …

Flow and radiation modeling over a Martian entry vehicle

N Kumar, A Bansal - Acta Astronautica, 2023 - Elsevier
The high-temperature shock layer around re-entry vehicles strongly emits radiation through
atomic lines and molecular bands. Radiative heat transfer strongly affects boundary layer …

State-Specific Dissociation and Inelastic Rate Constants for Collisions of with H and He

J Vargas, M Monge-Palacios, DA Lacoste - Journal of Thermophysics …, 2024 - arc.aiaa.org
Recent reports have called for planetary probe missions to the outer planets of the solar
system. To support these missions, kinetic data for processes involving molecular hydrogen …

Using aerothermodynamic similarity to experimentally study nonequilibrium giant planet entry

Y Liu, CM James, RG Morgan… - Journal of Spacecraft and …, 2020 - arc.aiaa.org
Peak heating points for the entry into Uranus, Neptune, and Saturn exhibit highly
nonequilibrium shock layers, and are not well understood. This paper describes an …

VUV to IR Emission Spectroscopy and Interferometry Diagnostics for the European Shock Tube for High-Enthalpy Research

R Grosso Ferreira, BB Carvalho, LL Alves, B Gonçalves… - Sensors, 2023 - mdpi.com
The European Shock Tube for High-Enthalpy Research is a new state-of-the-art facility,
tailored for the reproduction of spacecraft planetary entries in support of future European …

Effects of bulk viscosity, heat capacity ratio, and Prandtl number on the dispersion relationship of compressible flows

S Bhaumik, SO Deepak - Physics of Fluids, 2023 - pubs.aip.org
Here, we present the variation of the dispersion characteristics of the three-dimensional (3D)
linearized compressible Navier–Stokes equation (NSE) to bulk viscosity ratio, specific heat …

Experimental validation of a test gas substitution for simulating non-equilibrium giant planet entry conditions in impulse facilities

Y Liu, CM James, RG Morgan, TJ McIntyre - Experiments in Fluids, 2020 - Springer
Scaled giant planet entry testing is beyond the simulation capability of most impulse
facilities, which limits the ground testing data available for computational model validation …

Electron number density measurements in a Saturn entry condition

Y Liu, CM James, RG Morgan, PA Jacobs, R Gollan… - AIAA Journal, 2022 - arc.aiaa.org
The aerodynamic heating experienced by capsules entering into the atmospheres of Saturn,
Uranus, and Neptune is greatly affected by chemically nonequilibrium processes occurring …

Assessment of radiative heating for hypersonic earth reentry using nongray step models

X Yang, J Wang, Y Zhou, K Sun - Aerospace, 2022 - mdpi.com
Accurate prediction of the aerothermal environment is of great significance to space
exploration and return missions. The canonical Fire II trajectory points are simulated to …