A5100691891- Fluid Dynamics and Turbulent Flows
- Heat Transfer Mechanisms
- Fluid Dynamics and Vibration Analysis
- Wind and Air Flow Studies
- Computational Fluid Dynamics and Aerodynamics
- Aerodynamics and Fluid Dynamics Research
- Aerodynamics and Acoustics in Jet Flows
- Tunneling and Rock Mechanics
- Drilling and Well Engineering
- Turbomachinery Performance and Optimization
- Combustion and flame dynamics
- Heat transfer and supercritical fluids
- Rock Mechanics and Modeling
- Advanced materials and composites
- Particle Dynamics in Fluid Flows
- Silicon Carbide Semiconductor Technologies
- Rheology and Fluid Dynamics Studies
- Advancements in Semiconductor Devices and Circuit Design
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Semiconductor materials and interfaces
- Regional Economic and Spatial Analysis
- Plasma and Flow Control in Aerodynamics
- Fiber-reinforced polymer composites
- Belt Conveyor Systems Engineering
Fudan University
2017-2024
Beijing University of Technology
2020-2024
Huzhou University
2022-2024
Guangxi University
2023
Hunan Communications Research Institute
2023
Central South University
2023
Zhejiang University
2023
Nanyang Technological University
2023
Stockholm University
2019-2021
Dalian University of Technology
2017
Aiming to investigate the non-uniform temperature distribution of steel-concrete composite box girder-ballastless track system induced by time-varying solar radiation, ray-tracing algorithm was used calculate environmental parameters. The segment finite element model (SFEM) for spatial interaction between bridge and ballastless perform several numerical simulations. variation radiation evaluated based on results showed that peak (on western side steel web) 49.59 Co (at 16:00). Regarding...
Direct numerical simulation (DNS) is performed to investigate the fully developed turbulence in a straight square annular duct. The mean flow field and turbulent statistics are compared with existing experiments results. comparisons analysis of DNS data led discovery boundary layers concave convex 90° corners, corner similarity scaling characteristics turbulence. Analysis streamwise velocity near corners resulted establishing ‘law-of-the-corner’ formulations. Comparing these formulations...
Low-Reynolds-number aerodynamic performance of small-sized air vehicles is an area increasing interest. In this study, low-Reynolds-number flows past SD7003 airfoil are investigated to understand important viscous features laminar separation and transitional flow followed by the complicated behavior reattachment process. order satisfy three-dimensional (3D) requirement code, a simple "3D wing" constructed from two-dimensional (2D) airfoil. A parametric study large eddy simulation (LES) on at...
Recently, grid fins have been receiving increasing attention as a practical and efficient means of controlling missile trajectory. Preliminary studies at IAR demonstrated that modern CFD methods can be used for computing flows past complex fin type configurations, these bring improved predictions over the earlier vortex lattice and/or shock expansion methods. aerodynamic coefficients assembly, with without fairing ramp, would provide direct evaluating effect At this stage, investigations are...
The fully developed turbulent flow in a straight square annular duct is simulated using large eddy simulation (LES). Reynolds number 200 based on the mean friction velocity and half hydraulic diameter of duct. A grid refinement study carried out 130×66×66 (0.57 million) 130×130×130 (2.2 control volumes, respectively. field statistics are compared with existing experimental numerical data for flow. Acceptable agreement obtained. universal relation between streamwise distance away from concave...
The thermal turbulence in an infinitely-long square annular duct (SAD) was studied by the direct numerical simulation with Reynolds (Re) number Reb≈6400 based on bulk velocity. isothermal boundary condition applied to side walls SAD higher and lower temperatures outer inner walls, respectively. As one of most fascinating features for corner turbulence, turbulent-driven secondary flow (TDSF) presented twin counter-rotating vortex pairs symmetrically located at concave convex corners. TDSF...
Accurate prediction of mean velocity in turbulent boundary layer is an important topic from the standpoints both physics and engineering. In current study, a unified form law wall proposed for streamwise with zero pressure gradient. From physical perspective, improved capable reflecting actual weight variations between molecular viscosity turbulence-eddy viscous, transition, logarithmic sublayers. viscous sublayer, variety direct numerical simulation (DNS) data, including 19 groups, are used...
View Video Presentation: https://doi.org/10.2514/6.2023-1557.vid The tailless flying wing and blended wing-body aircraft have historically emerged in the pursuit of improved aerodynamics flight performance. Despite their many advantages, these designs are highly vulnerable to lateral-directional instabilities such as rock. Wing rock refers uncontrolled roll oscillations that occur at low subsonic transonic speeds. knowledge detection characteristics is still being determined. This research...