A5101876553- Heat Transfer Mechanisms
- Turbomachinery Performance and Optimization
- Tribology and Lubrication Engineering
- Fluid Dynamics and Turbulent Flows
- Heat Transfer and Boiling Studies
- Heat Transfer and Optimization
- Aerodynamics and Fluid Dynamics Research
- Gear and Bearing Dynamics Analysis
- Mechanical stress and fatigue analysis
- Hydraulic and Pneumatic Systems
- Glass properties and applications
- 2D Materials and Applications
- Nuclear Engineering Thermal-Hydraulics
- Nonlinear Optical Materials Studies
- Phase-change materials and chalcogenides
- Irrigation Practices and Water Management
- Hydraulic flow and structures
- Water Systems and Optimization
- Magnetic Bearings and Levitation Dynamics
- Multiferroics and related materials
- Plasma and Flow Control in Aerodynamics
- Vehicular Ad Hoc Networks (VANETs)
- Diamond and Carbon-based Materials Research
- Magnetic properties of thin films
- Photonic Crystal and Fiber Optics
Hunan University
2023-2025
Xi'an Jiaotong University
2015-2024
China Building Materials Academy
2018-2020
Alabama Agricultural and Mechanical University
2000
Abstract The exchange bias (EB) effect is a fundamental magnetic phenomenon, in which the field/coercive field ratio (|H EB /H C |) can improve stability of spintronic devices. Two‐dimensional (2D) heterostructures have potential to construct low‐power and high‐density devices, while their typically air unstable |H | lesser, limiting possibility applications. Here, 2D Cr 5 Te 6 nanosheets been systematically synthesized with an situ formed ≈2 nm‐thick doped 2 O 3 layer (Te‐Cr ) on upper...
The improvement in rotordynamic performance of the annular gas seal requires efficient and accurate prediction methods coefficients. Although existed transient computational fluid dynamics (CFD) published literature have excellent numerical accuracy, most them face challenge due to coefficients at every excitation frequency be solved by a separate CFD thus much time-consuming. In this paper, generalized method is proposed address difficulty. Based on Laplace transform method, solution...
This article presents a transient computational fluid dynamics method based on the elliptical orbit model to solve rotordynamic coefficients of non-axisymmetric rotating turbomachinery. To validate numerical approach, an arbitrary stator roughened seal, named hole-pattern is taken as object investigate performance at different excitation frequencies. For each case, force computed by integrating unsteady pressure off-centered rotor surface. The are obtained solving frequency dependent...
The rotordynamic characteristic of the hole-pattern seals with two different hole-diameters was investigated using unsteady Reynolds-averaged Navier–Stokes (URANS) equations solutions and bulk flow methods. mesh deformation method combined elliptical orbit model adopted to numerically solve transient fields. By integrating reaction forces on rotor surface, coefficients at a set excitation frequencies were obtained reaction-force/motion model. effects density, constant temperature assumption,...
Abstract Effects of non-axisymmetric endwall profiling on total pressure loss, heat transfer, and film cooling effectiveness a transonic rotor blade were numerically investigated. The numerical methods, including the turbulence model grid sensitivity, validated with existing experimental data. To reduce thermal load endwall, near leading edge at pressure-side corner area was performed range contour amplitudes. Heat transfer flow fields profiled endwalls analyzed also compared plain...
Abstract Heat transfer and aerodynamic performance in worn squealer tip gap of a high-pressure gas turbine stage were numerically investigated. Effects the starting location wear depth on heat coefficient distributions efficiency analyzed to evaluate aero-thermal degradations after wear. At three locations five depths, flow patterns visualized compared with original design case. The results show that counter-rotating vortex systems cavity, as well interactions between leakage passage vortex,...