A5101911316- Lattice Boltzmann Simulation Studies
- Fluid Dynamics and Turbulent Flows
- Particle Dynamics in Fluid Flows
- Plasma and Flow Control in Aerodynamics
- Gas Dynamics and Kinetic Theory
- Fluid Dynamics and Vibration Analysis
- Fluid Dynamics and Heat Transfer
- Aerosol Filtration and Electrostatic Precipitation
- Computational Fluid Dynamics and Aerodynamics
- Generative Adversarial Networks and Image Synthesis
- Polysaccharides Composition and Applications
- Nanofluid Flow and Heat Transfer
- Laser-Plasma Interactions and Diagnostics
- Lightning and Electromagnetic Phenomena
- Botanical Research and Applications
- Heat and Mass Transfer in Porous Media
- Heat Transfer and Mathematical Modeling
- Aerodynamics and Fluid Dynamics Research
- Statistical Methods in Clinical Trials
- Electrical Contact Performance and Analysis
- Structural Health Monitoring Techniques
- Structural mechanics and materials
- Advanced Measurement and Metrology Techniques
- Advanced machining processes and optimization
- Nanopore and Nanochannel Transport Studies
Shandong Jiaotong University
2018-2024
Tsinghua University
2023
Key Laboratory of Nuclear Radiation and Nuclear Energy Technology
2023
Chinese Academy of Medical Sciences & Peking Union Medical College
2019
Shanghai University
2018
China National Nuclear Corporation
2016
China University of Mining and Technology
2009-2014
Air Force Engineering University
2011-2012
Linyi University
2012
State Key Laboratory of Food Science and Technology
2008
In this paper, a discrete Boltzmann method (DBM) for plasma kinetics is proposed and further used to investigate the non-equilibrium characteristics in Orszag–Tang (OT) vortex Richtmyer–Meshkov instability (RMI) problems. The construction of DBM mainly considers two aspects. first build physical model with sufficient capability capture underlying physics. second devise schemes extracting more valuable information from massive data. For aspect, generated equivalent magnetohydrodynamic model,...
A new multiple-relaxation-time lattice Boltzmann scheme for compressible flows with arbitrary specific-heat ratio and Prandtl number is presented. In the scheme, which based on a two-dimensional 16-discrete-velocity model, kinetic moment space corresponding transformation matrix are constructed according to seven-moment relations associated local-equilibrium distribution function. continuum limit, model recovers Navier-Stokes equations flexible number. Numerical experiments show that strong...
In this paper, the coupled Rayleigh-Taylor-Kelvin-Helmholtz instability(RTI, KHI and RTKHI, respectively) system is investigated using a multiple-relaxation-time discrete Boltzmann model. Both morphological boundary length thermodynamic nonequilibrium (TNE) strength are introduced to probe complex configurations kinetic processes. simulations, RTI always plays major role in later stage, while main mechanism early stage depends on comparison of buoyancy shear strength. It found that, both...
Jumping-droplet condensation pushes the boundary of heat transfer by enabling microdroplet shedding via coalescence-induced droplet jumping. The latter is empowered surface-to-kinetic energy conversion. Regardless extensive studies jumping on ideally non-wetting surfaces, a quantitative description from realistic surfaces remains challenge due to limited insight into complex conversion process that strongly coupled with droplet–droplet and droplet–substrate interactions. Here, we use...
The Kelvin–Helmholtz Instability (KHI) with and without external magnetic fields is computationally investigated based on the Discrete Boltzmann Method (DBM). maximum local Knudsen number in system up to more than 0.06. Simultaneously, density correction induced by second-order effects near some interfaces 10% . This work aims at kinetic physics that occurs length time scales of particle collisions, which leads discrete/non-equilibrium may contribute observed differences between hydrodynamic...
In micro- and nanoscale channels, where the characteristic scale approaches or falls below mean free path between gas molecules, flow characteristics exhibit pronounced discontinuity. such scenarios, continuum-based models are inadequate, adopting kinetic based on statistical mechanics becomes imperative for accurately describing transport phenomenon. This paper presents a novel steady-state discrete Boltzmann model (DBM) that is specifically tailored non-equilibrium flows at...
A highly efficient three-dimensional (3D) Lattice Boltzmann (LB) model for high-speed compressible flows is proposed. This developed from the original one by Kataoka and Tsutahara [Phys. Rev. E 69 (2004) 056702]. The convection term discretized Non-oscillatory, containing No free parameters Dissipative (NND) scheme, which effectively damps oscillations at discontinuities. To be more consistent with kinetic theory of viscosity to further improve numerical stability, an additional dissipation...
The two-dimensional Richtmyer-Meshkov Instability(RMI) system and the coexisting combined with Rayleigh-Taylor Instability(RTI) are simulated a multiple-relaxation time discrete Boltzmann model. It is found that, for RMI system, correlation between globally averaged non-organized energy flux nonuniformity of temperature nearly 1; momentum velocity that thermodynamic non-equilibrium strength density also high. In RTI, collaboration competition mechanisms two instabilities investigated. case...
We present a highly efficient lattice Boltzmann model for simulating compressible flows. This is based on the combination of an appropriate finite difference scheme, 16-discrete-velocity [Kataoka and Tsutahara, Phys. Rev. E 69 (2004) 035701(R)] reasonable dispersion dissipation terms. The term effectively reduces oscillation at discontinuity enhances numerical precision. makes new more easily meet with von Neumann stability condition. works both high-speed low-speed flows arbitrary...
Slip flow is a common phenomenon in micro-/nano-electromechanical systems. It well known that the mass and heat transfers slip show many unique behaviors, such as velocity temperature jump near wall. However, kinetic understanding of still an open problem. This paper first clarifies Thermodynamic Non-Equilibrium (TNE) flows can be roughly classified into two categories: near-wall TNE away from The origins cases are significantly different. For former, mainly results fluid–wall interaction;...
The aims of the present paper are twofold. At first, we further study Multiple-Relaxation-Time (MRT) Lattice Boltzmann (LB) model proposed in [Europhys. Lett. 90 (2010) 54003]. We discuss reason why Gram—Schmidt orthogonalization procedure is not needed construction transformation matrix M; point out a Kataoka—Tsutahara [Phys. Rev. E 69 (2004) 035701 (R)] only valid subsonic flows. von Neumann stability analysis performed. Secondly, carry preliminary quantitative on Richtmyer—Meshkov...
This paper presents a preliminary experimental investigation on magnetohydrodynamic (MHD) power generation using seeded supersonic argon flow as working fluid. Helium and are used driver driven gas respectively in shock tunnel. Equilibrium contact surface operating mode is to obtain high temperature gas, the conductivity obtained by adding seed K2CO3 powder into section. Under conditions of nozzle inlet total pressure being 0.32 MPa, 6 504 K, magnetic field density about 0.5 T outlet...
A Discrete Boltzmann Model(DBM) based on the Shakhov model for detonation is proposed. Compared with DBM Bhatnagar–Gross–Krook (BGK) model, current has a flexible Prandtl numbers and consequently can be applied to much wider range of phenomena. Besides Hydrodynamic Non-Equilibrium (HNE) behaviors usually investigated by Navier–Stokes most relevant Thermodynamic (TNE) effects probed model. The validated some well-known benchmarks, steady unsteady processes are investigated. As von Neumann...
In this paper, a new flux limiter scheme with the splitting technique is successfully incorporated into multiple-relaxation-time lattice Boltzmann (LB) model for shacked compressible flows. The proposed efficient in decreasing artificial oscillations and numerical diffusion around interface. Due to kinetic nature, some interface problems being difficult handle at macroscopic level can be modeled more naturally through LB method. Numerical simulations Richtmyer—Meshkov instability show that...
Background To establish and validate an laboratory information system (LIS)‐based auto‐verification (AV) by using large amounts of biochemical test results in cancer patients. Methods An algorithm the AV process was designed for pre‐analysis, analysis, post‐analysis. The limit range check adjusted three times, while delta criteria were first replaced same patients’ historical extremum results. rules 51 items tested data 121 123 samples (6 177 273 tests) 2016 that manually reviewed through...