A5100682058- Computational Fluid Dynamics and Aerodynamics
- Advanced Numerical Methods in Computational Mathematics
- Differential Equations and Numerical Methods
- Microstructure and mechanical properties
- Mathematical Biology Tumor Growth
- Fluid Dynamics and Turbulent Flows
- Microstructure and Mechanical Properties of Steels
- High-Voltage Power Transmission Systems
- Fluid Dynamics Simulations and Interactions
- Stability and Control of Uncertain Systems
- Nuclear reactor physics and engineering
- Structural Load-Bearing Analysis
- Magnetic Properties and Applications
- Icing and De-icing Technologies
- Advanced Numerical Analysis Techniques
- Numerical methods in engineering
- Microtubule and mitosis dynamics
- Aerodynamics and Fluid Dynamics Research
- Nonlinear Waves and Solitons
- Gene Regulatory Network Analysis
- Advanced Mathematical Modeling in Engineering
- Nonlinear Photonic Systems
- Rheology and Fluid Dynamics Studies
- Adaptive Dynamic Programming Control
- Optimization and Variational Analysis
Zhengzhou University
2020-2024
Northwestern Polytechnical University
2021-2022
China University of Petroleum, East China
2021
Dalian University of Technology
2021
Wuhan University of Technology
2019
Wuhan University
2009
Peking University
1989
The numerical simulation and force measurement experiment are conducted in this work. direct method with high-order schemes is performed to resolve the incompressible turbulent flow over riblets. According statistics, behaviors of large-scale streamwise vortices above riblets analyzed. In drag-reducing cases, population density near wall decreases, ratio contributions total mean shear also lowered. addition, situated riblet tips, spanwise motions weakened. Consequently, they anchored at...
The micro/macro magnetic properties, local element distribution, martensite transformation, and mechanical properties of 304H stainless wires are determined for two cold drawing chains. Finite simulations used to analyse the strain heat generation. results show that there is obvious inhomogeneity in strain/stress relationship, strain-induced within drawn wires. Comparing with same total strain, a larger area reduction previous processes contributes higher volume phase, while smaller first...
The static recrystallization (SRX) behavior of a low carbon Nb–V–Ti microalloyed steel X70 was investigated by two-pass hot compression tests. tests were carried out at deformation temperatures 1000–1150 °C, strain rates 0.01–5 s −1 , pre-strains 0.1–0.2 and interval times 1–50 s. effects parameters on SRX analyzed. experimental results showed that temperature, pre-strain rate had significant influence fraction, while initial grain size smaller impact. microstructure discussed, the evolution...
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To reduce the computational cost, k-ω SST turbulence model with Rotation and Curvature correction (SST-RC) is modified to predict drag of practical aerodynamic configurations mounted drag-reducing riblets. In model, wall ω reconstructed based on existing experimental results becomes a function riblet geometry, angle attack, position at surface, parameters grids. The SST-RC validated by numerical examinations. Subsequently, maximum error 3.00% achieved. Furthermore, studies wing–body...
Abstract The corona discharge pulse current has double exponential distribution characteristics. On this basis, the electromagnetic radiation model of is established by using theory electric dipole. characteristics are analysed and compared with measured results 1000kV UHV ac transmission line. show that field strength increases first then decreases time, at same exponentially distance. simulated predicted have variation law as data, which verifies correctness model.
A uniform framework of linearized fully decoupled discrete scheme is developed and investi-gated with low order nonconforming finite element methods (FEMs) for nuclear reactor model. On theone hand, a general called Scheme I constructed , its un-conditional optimal error in the L2-norm superclose estimates broken H1-norm are obtainedby modified Ritz projection mathematical induction, which mistake appeared theprevious literature corrected application so-called popular time-space splitting...
A linearized decoupled Crank-Nicolson (CN) fully discrete scheme is developed by Galerkin FEM for a class of chemotactic model with nonlinear secretion. The can reduce the dimension coffcient matrix greatly in numerical simulation compared implicit schemes. existence and uniqueness solution are proved, unconditional superclose results H1- norm derived through rigourous theoretical analysis. It shows that be calculated large time step, which has incomparable advantages long model. Then,...
In this paper, the problem of dissipative control is investigated for continuous-time polynomial nonlinear systems with uncertainty. The purpose addressed to design a state feedback controller such that closed-loop system asymptotically stable and prescribed dissipativity performance satisfied. By resorting sum squares method, sufficient conditions are derived existence anticipant taking advantage solution matrix inequality, thus complex Hamilton-Jacobi inequalities iterative programmings...