Further acceleration of multiscale simulation of rarefied gas flow via a generalized boundary treatment

W Liu, Y Zhang, J Zeng, L Wu - Journal of Computational Physics, 2024 - Elsevier
The recently-developed general synthetic iterative scheme (GSIS) is efficient in simulating
multiscale rarefied gas flows due to the coupling of mesoscopic kinetic equation and …

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 …

Nonlinear coupled constitutive relations for hypersonic reacting flows with thermal nonequilibrium effect

S Zeng, J Yang, W Zhao, Z Yuan, G Fan, W Chen - Physics of Fluids, 2025 - pubs.aip.org
The complex interplay between high-temperature and rarefaction effects poses ongoing
challenges to model hypersonic nonequilibrium flows, affecting the accurate prediction of …

Numerical investigation of impinging plume under vacuum and realistic nozzle outlet condition

C Tian, Z Zhao, Z Sun, G He, K Wang, H Teng - Physics of Fluids, 2024 - pubs.aip.org
During a lunar module landing, the gas extended from the engine nozzle impinges on the
lunar surface. A recirculation bubble could form beneath the surface shock wave, which …

An implicit unified gas-kinetic particle method with large time steps for gray radiation transport

Y Hu, C Liu, H Shen, G Xiao, J Li - Physics of Fluids, 2024 - pubs.aip.org
For a long time, efficient algorithms for high-dimensional equations, represented by photon
radiation transport, have been one important topic in the development of computational …

Numerical study on effects of a module-scale crater on lunar plume-surface interaction

Z Zhao, C Tian, J Bian, Q Liu, X Wang, G He… - Acta Mechanica …, 2024 - Springer
During lunar landings, impact craters and other complex terrains may intensify dust
dispersion produced by plume-surface interaction, posing disturbances and threats to lunar …

[HTML][HTML] A piecewise-hierarchical particle count method suitable for the implementation of the unified gas-kinetic wave–particle method on graphics processing unit …

H Yu, W Xie, W Ren, Z Tian - Physics of Fluids, 2024 - pubs.aip.org
The particle counting part in the unified gas-kinetic wave–particle method on graphics
processing unit (GPU) devices is computationally intensive. This paper introduces a …

A variant of improved discrete velocity method for efficient simulation of flows in entire Knudsen number regimes

ZY Yuan, LM Yang, C Shu, K Jiang, LQ Zhang - Physics of Fluids, 2024 - pubs.aip.org
In this paper, a variant of the improved discrete velocity method (VIDVM) is proposed for
flows in the whole Knudsen number regimes. This method retains the advantage of the …

Multiple-GPU accelerated high-order gas-kinetic scheme on three-dimensional unstructured meshes

Y Wang, W Cao, L Pan - arXiv preprint arXiv:2407.00656, 2024 - arxiv.org
Recently, successes have been achieved for the high-order gas-kinetic schemes (HGKS) on
unstructured meshes for compressible flows. In this paper, to accelerate the computation …

Numerical investigation of flow and particles contamination in reticle mini environment for extreme ultraviolet lithography

Q Wang, K Wang, X Wu, Z Gao - … of Vacuum Science & Technology B, 2024 - pubs.aip.org
Particle-caused reticle defects contribute to a profound effect on the final integrated circuit
(IC) yield, posing a significant technological challenge in extreme ultraviolet (EUV) …