SU2-NEMO: An open-source framework for high-Mach nonequilibrium multi-species flows

WT Maier, JT Needels, C Garbacz, F Morgado… - Aerospace, 2021 - mdpi.com
SU2-NEMO, a recent extension of the open-source SU2 multiphysics suite's set of physical
models and code architecture, is presented with the aim of introducing its enhanced …

Kinetic and continuum modeling of high-temperature air relaxation

SF Gimelshein, IJ Wysong, AJ Fangman… - … of Thermophysics and …, 2022 - arc.aiaa.org
Fully kinetic, vibrationally kinetic, and continuum solvers with varying model fidelity are used
in this work to model the high-temperature relaxation of air in 7230 and 15,000 K adiabatic …

Analysis of nonequilibrium atomic and molecular nitrogen radiation in pure N2 shockwaves

A Tibère-Inglesse, BA Cruden - Journal of Quantitative Spectroscopy and …, 2022 - Elsevier
This paper presents an analysis of data previously reported from a test series in the Electric
Arc Shock Tube Facility for incident shocks composed of pure nitrogen. The present work …

Reflected shock waves in air components and their mixtures: Validation of theoretical models

D Kravchenko, O Kunova, E Kustova, M Melnik - Acta Astronautica, 2024 - Elsevier
Nonequilibrium flows of air components behind reflected shock waves are systematically
studied on the basis of several theoretical models for the rate coefficients of fully coupled …

State-specific boundary conditions for nonequilibrium gas flows in slip regime

L Shakurova, E Kustova - Physical Review E, 2022 - APS
Boundary conditions for fluid-dynamic variables of strongly nonequilibrium multicomponent
gas mixture flows in slip regime are derived systematically by two different approaches. The …

Experimental and numerical studies on the thermal nonequilibrium behaviors of CO with Ar, He, and H2

D He, Q Hong, F Li, Q Sun, T Si, X Luo - The Journal of Chemical …, 2023 - pubs.aip.org
The time-dependent rotational and vibrational temperatures were measured to study the
shock-heated thermal nonequilibrium behaviors of CO with Ar, He, and H 2 as collision …

State-specific slip boundary conditions in non-equilibrium gas flows: Theoretical models and their assessment

L Shakurova, I Armenise, E Kustova - Physics of Fluids, 2023 - pubs.aip.org
In this study, we develop and assess a new approach to modeling slip boundary conditions
in gas mixtures with coupled state-to-state vibrational-chemical kinetics and surface physical …

Radiation properties of air behind strong shock wave

PV Kozlov, NG Bykova, GY Gerasimov, VY Levashov… - Acta Astronautica, 2024 - Elsevier
The problem of descent spacecrafts safety is closely related to the correct assessment of
heat fluxes to their surface. This work is devoted to an experimental study of radiative heat …

State-to-state oxygen kinetics behind reflected shock waves: Assessment of different approaches

D Kravchenko, O Kunova, E Kustova… - AIP Conference …, 2024 - pubs.aip.org
We study the influence of vibrational and chemical relaxation behind the incident shock
wave on the gas parameters behind the reflected wave. The detailed state-to-state approach …

Coarse-grained modeling of high-enthalpy air flows based on the updated vibrational state-to-state kinetics

Y Huang, Q Hong, S Gu, X Wang, Q Sun - Physics of Fluids, 2024 - pubs.aip.org
The state-to-state (StS) model can accurately describe high-temperature thermochemical
nonequilibrium flows. For the five-species air gas mixture, we develop a comprehensive …