Non-equilibrium simulation of energy relaxation for earth reentry utilizing a collisional-radiative model

YW Du, SR Sun, MJ Tan, Y Zhou, X Chen, X Meng… - Acta Astronautica, 2022 - Elsevier
A high-temperature air collisional-radiative model considering both vibrational and
electronic excited states is established to investigate the plasma characteristics along the …

[HTML][HTML] Competing effects of surface catalysis and ablation in hypersonic reentry aerothermodynamic environment

CUI Zhiliang, Z Jin, YAO Guice, J Zhang… - Chinese Journal of …, 2022 - Elsevier
Under hypersonic flow conditions, the complicated gas-graphene interactions including
surface catalysis and surface ablation would occur concurrently and intervene together with …

Molecular insight of the interface evolution of silicon carbide under hyperthermal atomic oxygen impact

Z Cui, J Zhao, G Yao, Z Li, D Wen - Physics of Fluids, 2022 - pubs.aip.org
One of the key challenges faced by hypersonic flying is the complex thermal–mechanical–
chemical coupling effect between thermal protection materials and non-equilibrium flow …

Atomic insight into the combustion behavior of aluminum nanoparticles under mixed atmosphere of H2O, CO2 and O2

Z Fan, W Zhang, Y Shu, P Liu, A Pang, W Ao - Acta Astronautica, 2023 - Elsevier
The reaction processes between aluminum particles and H 2 O/CO 2/O 2 mixture at high
temperatures are not clear. The reaction systems of H 2 O/Al, CO 2/Al, O 2/Al and mixed H 2 …

Determination of surface catalysis on copper oxide in a shock tube using thermochemical nonequilibrium CFD analysis

Y Yang, VRP Sethuraman, H Kim, JG Kim - Acta Astronautica, 2022 - Elsevier
A numerical assessment of both oxygen and nitrogen catalytic recombination efficiency on
copper oxide surface is conducted using a computational fluid dynamics (CFD) analysis …

Analysis of nitrogen recombination activity on silicon dioxide with stagnation heat-transfer

I Kim, S Lee, JG Kim, G Park - Acta Astronautica, 2020 - Elsevier
Investigation of surface recombination activity of nitrogen on certain materials is crucial in
the design of hypersonic re-entry vehicles. In the present work, an experimental study using …

Reactive molecular dynamics simulation of thermal decomposition for nano-FOX-7

C She, S Jin, S Chen, L Li, Q Shu, Y Chen, J Wang… - Applied Physics A, 2021 - Springer
Diamino-2, 2-dinitroethylene (FOX-7) is well-known as one high-energy insensitive material.
The size effect of the nano-crystal on the pyrolysis are extremely important for ignition and …

Nano-roughness effect on the interfacial thermal oxidation and surface catalytical recombination characteristics for silicon carbide based materials under non …

L He, J Zhao, G Yao, J Tang, Y Cao, D Wen - Applied Surface Science, 2024 - Elsevier
With the rapid development of high-speed aircraft, the demanding for light, strong, reliable
and high temperature resistive thermal protection material (TPM) is becoming urgent. High …

Kinetic Monte Carlo modeling of heterogeneous catalysis on silica thermal protective materials based on reactive molecular dynamics simulation

Q Li, X Yang, W Dong, Y Du - International Journal of Heat and Mass …, 2025 - Elsevier
Heterogeneous catalytic recombination of chemically dissociated atoms occurring on
thermal protective materials significantly increases the thermal load borne by high-speed …

Uncover Chemical Processes for Silica Surfaces Exposed to Atomic Oxygen Using ReaxFF Reactive Molecular Dynamics

X Ye, S Hu, G Zhang, Y Yan, Q Sun… - The Journal of Physical …, 2024 - ACS Publications
The considerable level of uncertainty in the measured and calculated catalytic
recombination coefficients of atomic oxygen (O) on silica (SiO2) surfaces has posed a great …