Computational study of lateral jet interaction in hypersonic thermochemical non-equilibrium flows using nonlinear coupled constitutive relations

S Zeng, J Yang, W Zhao, Y Huang, Z Jiang, W Chen - Physics of Fluids, 2023 - pubs.aip.org
The present study reports the numerical analyses of lateral jet interaction around a Terminal
High Altitude Area Defense-type (THAAD-type) model in hypersonic rarefied flows, with the …

Least-square finite difference-based physics-informed neural network for steady incompressible flows

Y Xiao, LM Yang, C Shu, H Dong, YJ Du… - Computers & Mathematics …, 2024 - Elsevier
In this work, a least-square finite difference-based physics-informed neural network (LSFD-
PINN) is proposed to simulate steady incompressible flows. The original PINN employs the …

Bounce and contact mode regimes for drop impact on smooth surfaces: The influence of gas kinetics and electrostatics

H Liu, J Zhang - Physics of Fluids, 2024 - pubs.aip.org
When liquid drops impact on solid surfaces, an air layer forms in between the drop and the
surface, acting as a cushion to mitigate the impact. In this work, we focus on delineating the …

Development of convolutional neural network-based surrogate model for three-dimensional vacuum plume prediction via direct simulation Monte Carlo method

B Zhang, G Cai, D Gao, H Weng, W Wang, B He - Physics of Fluids, 2024 - pubs.aip.org
The vacuum plume phenomenon encountered during lunar exploration missions poses
significant challenges, such as impingement forces, heat fluxes, and spacecraft …

Continuous and discontinuous compressible flows in a converging–diverging channel solved by physics-informed neural networks without exogenous data

H Liang, Z Song, C Zhao, X Bian - Scientific Reports, 2024 - nature.com
Physics-informed neural networks (PINNs) are employed to solve the classical compressible
flow problem in a converging–diverging nozzle. This problem represents a typical example …

Numerical analysis of a gas flow in a square cavity driven by spanwise lid motion on the basis of kinetic theory: Behavior of the gas near a sharp corner

M Hattori - Physics of Fluids, 2024 - pubs.aip.org
A gas flow in a square cavity driven by a lid sliding in the direction of its line of contact with
the cavity wall is considered. The steady behavior of the gas is numerically investigated …

Heat Flux Prediction of Radiation Balance Wall by Deep Convolutional Neural Networks

G Dai, W Zhao, S Yao, WS Li, W Chen - Journal of Thermophysics and …, 2024 - arc.aiaa.org
Aerodynamic thermal prediction plays a crucial role in the design of a hypersonic vehicle,
particularly with regard to the thermal protection system. Traditional methods of aerodynamic …

Neural network representation of microflows with BGK model

P Zhang, Y Wang - arXiv preprint arXiv:2410.21935, 2024 - arxiv.org
We consider the neural representation to solve the Boltzmann-BGK equation, especially
focusing on the application in microscopic flow problems. A new dimension reduction model …