97 citations · 382 across the 18 of their papers we have counts for
5 papers · 1 filter
An Implicit Discrete Adjoint Gas-Kinetic Scheme for Aerodynamic Shape Optimization across all Mach Number Regimes
Hangkong Wu, Yuze Zhu, Yajun Zhu +1
The gas-kinetic scheme (GKS) integrates the characteristics of flux difference scheme (FDS) and flux vector splitting (FVS) scheme, providing high accuracy in smooth regions and st…
A Hybrid Gas-Kinetic Scheme and Discrete Velocity Method for Continuum and Rarefied Flows
Hangkong Wu, Yuze Zhu, Yajun Zhu +1
The gas-kinetic scheme (GKS) provides high computational efficiency and accuracy for continuum flow simulations but is unable to reliably capture rarefaction effects. In contrast,…
A Discrete Adjoint Gas-Kinetic Scheme for Aerodynamic Shape Optimization in Turbulent Continuum Flows
Hangkong Wu, Yuze Zhu, Yajun Zhu +1
This study presents an efficient and accurate discrete adjoint gas-kinetic scheme (GKS) for sensitivity analysis and aerodynamic shape optimization in continuum flow regimes. Devel…
A unified gas-kinetic framework from Boltzmann to Navier-Stokes scales
Zhaoli Guo, Kun Xu, Yajun Zhu
Neither molecular kinetics nor continuum fluid dynamics alone is adequate to describe multiscale gas flows across different regimes. Bridging these regimes within a single self-con…
Unified gas-kinetic wave-particle methods VII: diatomic gas with rotational and vibrational nonequilibrium
Yufeng Wei, Yajun Zhu, Kun Xu
Hypersonic flow around a vehicle in near space flight is associated with multiscale non-equilibrium physics at a large variation of local Knudsen number from the leading edge highl…