76 citations · 221 across the 32 of their papers we have counts for
34 papers
A polar-harmonic unified gas-kinetic scheme for magnetized ion dynamics from cyclotron kinetics to the Hall-Pedersen constitutive limit
Yixiao Wang, Zhigang Pu, Xing Ji +1
Magnetized ion transport in weakly ionized plasmas ranges from gyroangle-dependent kinetics to Hall-Pedersen drift-diffusion as collisionality and magnetization vary. We develop a…
A single-stage high-order compact gas-kinetic scheme in arbitrary Lagrangian-Eulerian formulation
Yue Zhang, Xing Ji, Yibing Chen +2
This study presents the development of a compact gas-kinetic scheme using an arbitrary Lagrangian-Eulerian (ALE) formulation for structured meshes. Unlike the Eulerian formulation,…
A Three-Dimensional Two-Temperature Gas-Kinetic Scheme with Generalized Kinetic Boundary Condition for Hypersonic SBLI
Xingjian Gao, Hualin Liu, Fengxiang Zhao +1
Accurate prediction of aerothermal loads in hypersonic flows is critical yet challenging due to the coupling of Shock-Wave/Boundary-Layer Interactions (SBLI) and thermal non-equili…
The stability priority of spatial-temporal coupled compact element methods over decoupled compact element methods
Qihui Gao, Xing Ji, Zhifang Du +3
With the increasing industrial demands, two families of high-order numerical schemes are widely used within the computational fluid dynamics community. One is the method of line, w…
A Geometric Multigrid-Accelerated Compact Gas-Kinetic Scheme for Fast Convergence in High-Speed Flows on GPUs
Hongyu Liu, Xing Ji, Yuan Fu +1
Implicit methods and GPU parallelization are two distinct yet powerful strategies for accelerating high-order CFD algorithms. However, few studies have successfully integrated both…
Very High-order Compact Gas-kinetic Scheme With Discontinuity Feedback Factor
Junlei Mu, Hong Zhang, Xing Ji +3
This paper presents a robust and efficient very high-order scheme for compressible flow simulation, addressing critical limitations of existing high-order methods. The proposed sch…
An efficient and robust high-order compact ALE gas-kinetic scheme for unstructured meshes
Yibo Wang, Xing Ji, Liang Pan
For the arbitrary-Lagrangian-Eulerian (ALE) calculations, the geometric information needs to be calculated at each time step due to the movement of mesh. To achieve the high-order…
An implicit gas-kinetic scheme for internal and external flows
Yue Zhang, Xing Ji, Kun Xu
The gas-kinetic scheme(GKS) is a promising computational fluid dynamics (CFD) method for solving the Navier-Stokes equations. It is based on the analytical solution of the BGK equa…
UGKWP and IUGKP methods for Multi-Scale Phonon Transport with Dispersion and Polarization
Hongyu Liu, Xiaojian Yang, Chuang Zhang +2
This paper presents two novel methods for solving multi-scale phonon transport problems with dispersion and polarization effects: the unified gas-kinetic wave-particle (UGKWP) meth…
Implicit unified gas kinetic particle method for steady-state solution of multiscale phonon transport
Hongyu Liu, Xiaojian Yang, Chuang Zhang +2
This paper presents a highly efficient implicit unified gas-kinetic particle (IUGKP) method for obtaining steady-state solutions of multi-scale phonon transport. The method adapts…
Unified gas-kinetic wave-particle method for multi-scale phonon transport
Hongyu Liu, Xiaojian Yang, Chuang Zhang +2
Over the past 7 decades, the classical Monte Carlo method has played a huge role in the fields of rarefied gas flow and micro/nano scale heat transfer, but it also has shortcomings…
Treatment of Wall Boundary Conditions in High-Order Compact Gas-Kinetic Schemes
Jiawang Zhang, Xing Ji, Kun Xu
The boundary layer represents a fundamental structure in fluid dynamics, where accurate boundary discretization significantly enhances computational efficiency. This paper presents…
An Adaptive Reconstruction Method for Arbitrary High-Order Accuracy Using Discontinuity Feedback
Hong Zhang, Yue Zhao, Xing Ji +1
This paper introduces an effcient class of adaptive stencil extension reconstruction methods based on a discontinuity feedback factor, addressing the challenges of weak robustness…
A Memory Reduction Compact Gas Kinetic Scheme on 3D Unstructured Meshes
Hongyu Liu, Xing Ji, Yunpeng Mao +2
This paper introduces a memory-reduction third-order compact gas-kinetic scheme (CGKS) for solving compressible Euler and Navier-Stokes equations on 3D unstructured meshes. The sch…
Comparison of the high-order Runge-Kutta discontinuous Galerkin method and gas-kinetic scheme for inviscid compressible flow simulations
Yixiao Wang, Xing Ji, Gang Chen +1
The Runge--Kutta discontinuous Galerkin (RKDG) method is a high-order technique for addressing hyperbolic conservation laws, which has been refined over recent decades and is effec…
A Compact Gas-Kinetic Scheme with Scalable Geometric Multigrid Acceleration for Steady-State Computation on 3D Unstructured Meshes
Hongyu Liu, Xing Ji, Yunpeng Mao +2
In this paper, we present an advanced high-order compact gas-kinetic scheme (CGKS) for 3D unstructured mixed-element meshes, augmented with a geometric multigrid technique to accel…
A robustness-enhanced reconstruction based on discontinuity feedback factor for high-order finite volume scheme
Hong Zhang, Xing Ji, Kun Xu
In this paper, a robustness-enhanced reconstruction for the high-order finite volume scheme is constructed on the 2-D structured mesh, and both the high-order gas-kinetic scheme(GK…
Adaptive wave-particle decomposition in UGKWP method for high-speed flow simulations
Yufeng Wei, Junzhe Cao, Xing Ji +1
With wave-particle decomposition, a unified gas-kinetic wave-particle (UGKWP) method has been developed for the multiscale flow simulations. The UGKWP method captures the transport…
A high-order compact gas-kinetic scheme in a rotating coordinate frame and on sliding mesh
Yue Zhang, Xing Ji, Kun Xu
This paper extends the high-order compact gas-kinetic scheme (CGKS) to compressible flow simulations on a rotating coordinate frame. The kinetic equation with the inclusion of cent…
High-order Compact Gas-kinetic Schemes for Three-dimensional Flow Simulation on Tetrahedral Mesh
Fengxiang Zhao, Xing Ji, Wei Shyy +1
A general framework for the development of high-order compact schemes has been proposed recently. The core steps of the schemes are composed of the following. 1). Based on a kineti…
A p-multigrid compact gas-kinetic scheme for steady-state acceleration
Xing Ji, Wei Shyy, Kun Xu
In this paper, the high-order compact gas-kinetic scheme (CGKS) on three-dimensional hybrid unstructured mesh is further developed with the p-multigrid technique for steady-state s…
Direct Modeling for Computational Fluid Dynamics and the Construction of High-order Compact Scheme for Compressible Flow Simulations
Fengxiang Zhao, Xing Ji, Wei Shyy +1
Computational fluid dynamics is a direct modeling of physical laws in a discretized space. The basic physical laws include the mass, momentum and energy conservations, physically c…
A gradient-compression-based compact high-order gas-kinetic scheme on three-dimensional hybrid unstructured mesh
Xing Ji, Wei Shyy, Kun Xu
In this paper, the compact gas-kinetic scheme for compressible flow is extended to hybrid unstructured mesh. Based on both cell-averaged flow variables and their gradients updated…
Unified gas-kinetic wave-particle methods VI: Disperse dilute gas-particle multiphase flow
Xiaojian Yang, Chang Liu, Xing Ji +2
In this paper, a unified gas-kinetic wave-particle scheme (UGKWP) for the disperse dilute gas-particle multiphase flow is proposed. The gas phase is always in the hydrodynamic regi…