17 citations · 17 across the 18 of their papers we have counts for
12 papers · 1 filter
Rigorously justified local time stepping in the unified gas-kinetic wave-particle method for steady multiscale flow simulation
Wenzhi Guo, Junzhe Cao, Wenpei Long +1
Local time stepping (LTS) can accelerate convergence to steady states in kinetic simulations with large variations in the local time steps across the computational domain. When nei…
A unified gas-kinetic wave-particle method for multiscale gas-mixture flow with an elementary chemical reaction
Junzhe Cao, Yufeng Wei, Wenpei Long +2
Hypersonic flows in the near space often couple continuum-rarefied multiscale effect with finite-rate chemistry. This paper extends the UGKWP method to multiscale gas mixture flows…
An asymptotic-preserving adjoint unified gas kinetic scheme for sensitivity analysis
Yue Zhang, Junzhe Cao, Wenpei Long +1
High-dimensional sensitivity analysis and uncertainty quantification for multiscale gas dynamics, spanning the continuum to rarefied regimes, require computationally efficient and…
An Implicit Time-Domain Harmonic Balance Method for Radio-Frequency Capacitively Coupled Plasma Simulations
Yuze Zhu, Yufeng Wei, Yue Zhang +1
Fast and accurate fluid simulation of radio-frequency capacitively coupled plasmas (RF CCPs) is of great importance for the iterative design and parameter optimization of modern pl…
A Low-Storage Implicit Dual-Time Finite-Volume Framework for Radio-Frequency Capacitively Coupled Plasma Fluid Simulations
Yuze Zhu, Hangkong Wu, Junzhe Cao +2
Radio-frequency (RF) capacitively coupled plasmas (CCPs) are widely utilized in semiconductor manufacturing. Efficiently and accurately solving the underlying fluid governing equat…
A second-order unified gas-kinetic wave-particle method with enhanced mesh independence for hypersonic flows
Junzhe Cao, Rui Zhang, Wenpei Long +2
Benefiting from the direct modeling of physical laws in a discretized space and the automatic decomposition of the gas distribution function into hydrodynamic waves and particles,…
Surrogate-Based Aerodynamic Shape Optimization in Multiscale Flows via the Implicit Unified Gas-Kinetic Scheme
Xiaozhe Xi, Wenpei Long, Wenzhi Guo +2
While hypersonic glide vehicles such as the HTV-2 continue to be a focal point in aerospace research, their aerodynamic characteristics in complex near-space environments are not y…
On the Applicability of the Gas-Kinetic Scheme with Kinetic Boundary Conditions for Near-Continuum Hypersonic Flows
Wenpei Long, Junzhe Cao, Yue Zhang +1
Rarefied gas effects are of critical importance for the aerodynamic performance of hypersonic vehicles operating at high altitudes. In these scenarios, conventional computational f…
A unified gas-kinetic wave-particle method for multiscale binary-species gas mixtures
Junzhe Cao, Yufeng Wei, Wenpei Long +2
This paper presents a unified gas-kinetic wave-particle (UGKWP) method for simulating multiscale binary-species gas mixtures. Benefiting from direct modeling in a discretized space…
Harmonic Balance Unified Gas-Kinetic Scheme for Multiscale Periodic Flows
Yuze Zhu, Hangkong Wu, Yufeng Wei +1
A time-domain harmonic balance unified gas-kinetic scheme (HB-UGKS) is developed for simulating periodic non-equilibrium flows across all Knudsen regimes. By applying a time-spectr…
Revisit viscous shock tube at low Reynolds number
Yue Zhang, Kun Xu
The viscous shock tube is a canonical test case for assessing Navier-Stokes (NS) solvers in the continuum-flow regime, widely used to validate numerical accuracy and probe flow phy…
Unified Gas-Kinetic Scheme for Unsteady Multiscale Flows with Moving Boundaries
Yue Zhang, Wenpei Long, Junzhe Cao +1
Simulating multiscale flows with moving boundaries, such as hypersonic multi-body separation and flows in micro-electro-mechanical systems (MEMS), requires robust numerical methods…