Unified Gas Kinetic Scheme combined with Cartesian Grid Method for Intermediate Mach Numbers
Sign Up to like & getrecommendations! Published in 2017 at "International Journal for Numerical Methods in Fluids"
DOI: 10.1002/fld.4393
Abstract: Summary We develop a method to seamlessly simulate flows over a wide range of Knudsen numbers past arbitrarily shaped immersed boundaries. In order to achieve seamless computation, i.e. not use any zone division to distinguish… read more here.
Keywords: continuum; cartesian grid; method; grid method ... See more keywords
Gas‐kinetic unified algorithm for plane external force‐driven flows covering all flow regimes by modeling of Boltzmann equation
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Fluids"
DOI: 10.1002/fld.4812
Abstract: The nonequilibrium steady gas flows under the external forces are essentially associated with some extremely complicated nonlinear dynamics, due to the acceleration or deceleration effects of the external forces on the gas molecules by the… read more here.
Keywords: gas kinetic; equation; external force; force ... See more keywords
Comment on gas kinetic scheme for turbulence simulation
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.06.043
Abstract: Abstract The paper addresses the development of Lattice Boltzmann (LB) methods for turbulent flows in response to a recent paper of Tan et al. [1] . Exact results, which ensure the consistency of LB equations… read more here.
Keywords: turbulence simulation; gas kinetic; turbulence; scheme turbulence ... See more keywords
Multiscale simulation of molecular gas flows by the general synthetic iterative scheme
Sign Up to like & getrecommendations! Published in 2021 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2020.113548
Abstract: Abstract The in-depth knowledge of rarefied gas dynamics is crucial to address challenges in a wide range of engineering problems, where gas flows are usually multiscale, i.e., covering a wide range of Knudsen numbers. As… read more here.
Keywords: gsis; molecular gas; gas flows; gas ... See more keywords
Online measuring method and dynamic characteristics of gas kinetic parameters of linear compressor
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DOI: 10.1016/j.measurement.2018.05.024
Abstract: Abstract Gas force has great influence on linear compressor performance and it is normally nonlinear and time varying. To make it easy for the theoretical analysis and control of linear compressor, the gas force is… read more here.
Keywords: kinetic parameters; gas; gas force; gas kinetic ... See more keywords
Unified gas-kinetic wave-particle methods. II. Multiscale simulation on unstructured mesh
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Fluids"
DOI: 10.1063/1.5097645
Abstract: In this paper, we present a unified gas-kinetic wave-particle (UGKWP) method on unstructured mesh for multiscale simulation of continuum and rarefied flow. Inheriting from the multicale transport in the unified gas-kinetic scheme (UGKS), the integral… read more here.
Keywords: wave; method; particle; gas kinetic ... See more keywords
A Gradient Compression-Based Compact High-Order Gas-Kinetic Scheme on 3D Hybrid Unstructured Meshes
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Computational Fluid Dynamics"
DOI: 10.1080/10618562.2021.1991329
Abstract: In this paper, a compact gas-kinetic scheme (CGKS) for compressible flow is constructed on hybrid unstructured mesh. Based on high-order gas evolution model at cell interfaces both cell-averaged flow variables and their gradients can be… read more here.
Keywords: compression; order; gas kinetic; scheme ... See more keywords
Discrete unified gas kinetic scheme for the conservative Allen-Cahn equation
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.045317
Abstract: In this paper, two discrete unified gas-kinetic scheme (DUGKS) methods with piecewise-parabolic flux reconstruction are presented for the conservative Allen-Cahn equation (CACE). One includes a temporal derivative of the order parameter in the force term while… read more here.
Keywords: dugks; gas kinetic; equation; discrete unified ... See more keywords
Implementation of dual time-stepping strategy of the gas-kinetic scheme for unsteady flow simulations.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.053307
Abstract: In our study, the dual time-stepping strategy of the gas-kinetic scheme is constructed and used for the simulation of unsteady flows. In comparison to the previous implicit gas-kinetic scheme, both the inviscid and viscous flux… read more here.
Keywords: scheme; kinetic scheme; dual time; gas kinetic ... See more keywords
Simulating the energy cascade of shock wave formation process in a resonator by gas-kinetic scheme
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4989275
Abstract: The temporal-spatial evolution of the sound field in a cylindrical resonator driven by a piston was simulated by gas-kinetic scheme (GKS), and periodic shock waves propagating back and forth were observed in the resonator with… read more here.
Keywords: energy cascade; resonator; shock wave; kinetic scheme ... See more keywords
Evaluation of Cubic-Spline Based Gas Kinetic Method for Simulating Compressible Turbulence
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Fluid Mechanics"
DOI: 10.29252/jafm.12.05.29664
Abstract: In this work, we implement and examine a new flow reconstruction methodology using cubic-splines for interpolations in the gas kinetic method (GKM). We compare this version of GKM with the existing WENO based interpolation method.… read more here.
Keywords: gas kinetic; kinetic method; evaluation cubic; method ... See more keywords