A5084423344- Aerodynamics and Fluid Dynamics Research
- Wind and Air Flow Studies
- Fluid Dynamics and Vibration Analysis
- Aerodynamics and Acoustics in Jet Flows
- Fluid Dynamics and Turbulent Flows
- Vehicle Noise and Vibration Control
- Engineering Applied Research
- Transportation Safety and Impact Analysis
- High-Velocity Impact and Material Behavior
- Structural Response to Dynamic Loads
China Automotive Technology and Research Center
2023
Tianjin University
2021
Tongji University
2017-2020
U.S. Army Corp of Engineers Waterways Experiment Station
1970
United States Department of the Army
1970
<div>The aerodynamic performance of automobile especially drag and lift was largely determined by the wake flow, which is three-dimensional, unsteady, turbulent. The styling rear back vehicle body has much influence on flow structure, typically including squareback, notchback, hatchback. Bi-stability makes force oscillating, affects energy consumption driving stability. This article investigates bi-stability a hatchback SUV in full-scale automotive wind tunnel. Both surface pressure...
1. Ahmed S.R., Ramm G., Faltin 1984, Some Salient Features of the Time-Averaged Ground Vehicle Wake, SAE Technical Paper Series, DOI: 10.4271/840300. CrossRef Google Scholar
The pressure excitation on automotive front side window acts as an indicator of the unsteady flow and wind noise in region. complex this area generates a wider range vortex structures resulting nonhomogeneous glass. description field, which can consider exact space, is needed to better solve vibration problems. turbulent was achieved by incompressible improved delayed detached-eddy simulation, validated tunnel experiment. reduced-order modeling methods, including proper orthogonal...
The unsteady flow in the front side window region of vehicle can generate hydrodynamic and acoustic pressure on window, which influence interior sound field. was achieved by incompressible wall-modeled large-scale eddy simulation (WMLES) or improved delayed detached (IDDES), hybrid computational aeroacoustics (CAA) method based perturbation equations (APE) employed to achieve window. numerical results both ware validated wind tunnel experiment, especially corrected force analysis technique...
DISCUSSION«lH'iiv stress resultant) the minimum critical axial compressive for a homogeneous, isotropic, circular cylindrical shell is 43 percent of classical stress.4 It was not purpose paper to study many interesting results obtained by various research investigators with aid nonlinear stability theories.It known that, based on Koiter's general theory initial postbuckling behavior [7 8], axially compressed shells are highly sensitive imperfections in sense that which small, relative...