A5103245180- Cavitation Phenomena in Pumps
- Hydraulic and Pneumatic Systems
- Aerodynamics and Fluid Dynamics Research
- Refrigeration and Air Conditioning Technologies
- Fluid Dynamics and Vibration Analysis
- Advanced Measurement and Detection Methods
- Image and Object Detection Techniques
- Optical measurement and interference techniques
- Fluid Dynamics and Turbulent Flows
- Heat Transfer Mechanisms
- Oil and Gas Production Techniques
- Porphyrin Metabolism and Disorders
- Fluid Dynamics and Mixing
- Advanced Fiber Optic Sensors
- Laser and Thermal Forming Techniques
- Genetic and rare skin diseases.
- Fluid Dynamics Simulations and Interactions
- Lattice Boltzmann Simulation Studies
- Biomimetic flight and propulsion mechanisms
- Particle Dynamics in Fluid Flows
- RNA regulation and disease
- Metallurgy and Material Forming
- Welding Techniques and Residual Stresses
- Photonic and Optical Devices
- Gyrotron and Vacuum Electronics Research
Jilin University
2010-2024
State Key Laboratory of Automotive Simulation and Control
2021-2023
Southwest Jiaotong University
2008
Chinese Academy of Medical Sciences & Peking Union Medical College
2005
If the shaft diameter can be measured in-situ during finishing process, closed-loop control of processing process realized and machining accuracy improved. Present work studies measurement with structured light system composed a laser linear source camera. The is kind part rotationally symmetric structure. When irradiates surface shaft, stripe will formed, ellipse. Therefore, by rotational symmetry shaft. model established ellipse formed intersection plane surface. Firstly, in camera...
Background Disseminated superficial actinic porokeratosis (DSAP) is an uncommon autosomal dominant chronic disorder of keratinization, characterized by multiple keratotic lesions surrounded a slightly raised border. Thus far, although two loci for DSAP have been identified, and the genetic basis pathogenesis this not elucidated. Objectives To determine locus identify candidate gene(s) disease. Methods Genome-wide scan linkage analysis were performed in six-generation Chinese family with...
This study establishes a thermal management model to improve the heat exchange performance and uniformity of flow-field distribution in engine compartment wheel loader. Flow-field analyses are performed for an XG956 loader virtual wind tunnel using combined computational fluid dynamics. The Fluent calculations revealed various problems. For example, inlet flow rate at both sides is small, which accounts about 8.5% total flow, radiator becomes worse with increase air flow. original cooling...
The mechanism of flow instability, which involves complex gas–liquid interactions and multiscale vortical structures, is one the hot research areas in cavitating flow. role turbulence modeling crucial numerical investigation unsteady characteristics. Although large-eddy simulation (LES) has been used as a reliable method, it computationally costly. In this work, we hybrid Reynolds-averaged Navier–Stokes (RANS) LES model, that is, stress-blended eddy (SBES), to improve prediction capability...
The gear shaft needs to measure its radial runout for straightening before finishing, while it is difficult the without rotating by existing measurement technology, which results inefficient. Present work puts forward a method of measuring with line structured light vision. This can value and direction online bending shaft. center position cross section obtained ellipse geometric fitting on laser plane eliminate influence projection distortion. tested specialized experiment, experimental...
As a part of vehicle thermal management, water-cooled intercoolers play an important role in engine efficiency. The incompressible simulation model was usually applied to estimate the performance intercoolers. In this paper, computational fluid dynamics (CFD) compressible is taken analyze more accurate prediction models. rate section change, heat exchange, and surface friction coefficient are used as comparison basis flow on pressurized air side intercooler. By comparing results side, it...
Advanced cascade design theories and methods are crucial to the rapid development of torque converters. Therefore, study proposed a new parametric method for hydrodynamic converter cascade. The is embodied by using cubic non-uniform rational B-splines (NURBS) open curve closed curve, respectively, carry out unit blade camberline thickness distribution, curvature designed continuous. Then, author developed batch script files in Isight platform fully automated integrated converter, including...
Inspired by the successful applications of biological non-smoothness, bionic non-smooth surface was integrated into design hydrodynamic torque converter (TC) to conduct research on drag reduction and efficiency improvement, concaves model were established according our analysis with mechanisms underlying unit mediated fluid reduction. The friction, shear turbulent viscous in adjacent areas pump found decline after TC subjected transient numerical simulation tests using computational dynamics...
The inlet and outlet radii are important design parameters that directly determine the internal/external characteristics cavitation of torque converter (TC). stator turbine main areas in TCs. Based on this, radius is taken as research object this paper. In study, computational fluid dynamics (CFD) models different established, influence stator/turbine performance TCs revealed by comparing characteristics. results show reducing stator/increasing will cause blade to be shorter, increase area...
To improve the efficiency of heat transfer from cooling system non-road mobile machinery, a modification has been made to classic system. Specifically, we divide into two independent loops, namely, high-temperature loop and low-temperature loop. Through simulation experimentation, dual-loop was systematically studied, it found that dissipation better than single-loop In comparison with system, volume factor our increased by 49.3%, power 24.5%, effective drag coefficient 5.8%, compressed air...
The flow characteristics research on fluid coupling has great important meanings to raise its performance. In order study the three-dimensional of coupling, internal field is analysised based numerical simulation and experimental measurement. Numerical computational results are compared with available results. According qualitative analysis in theoretical research, visualization achieved. It found that phenomenon nearly same
The internal flow that develops in hydrodynamic coupling is exceedingly complex, especially incompletely liquid-filled which contain gas-liquid two phase. For such characterization, particle-image velocimetry (PIV) techniques are now regarded as a powerful tool .To investigate detailed knowledge and distribution characteristic of phase field coupling, the PIV measurements carried on braking condition rated condition, liquid filled ratio 50% 75%. results help us to understand more information...
Application of windowing techniques to a coaxial Bragg Reflector is comparatively studied. Simulation results by using the CST software show that bandwidth, reflectivity and smoothness pass band affected different window distribution.