1 option
Investigation of Turbulent Wind Characteristics on Vehicles by Large Eddy Simulation Guangzhou Automobile Group Company, Ltd, Automotive Research andam
- Format:
- Book
- Conference/Event
- Author/Creator:
- Liu, Man, author.
- Conference Name:
- Automotive Technical Papers (2022-01-01 : Warrendale, Pennsylvania, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2022
- Summary:
- Automotive aerodynamic development requires not only to reduce aerodynamic drag but also to develop vehicles that perform well under real road conditions. Although a few types of research have studied the wind characteristics vehicles experienced on-road, the mechanisms of turbulent effects on vehicle aerodynamics are still not well understood. For this reason, an alternative computational fluid dynamics (CFD) method is adopted in this study to reproduce the turbulent wind characteristics, with the aim of providing a more accurate and reliable simulation method to help further understand the wind environment in the atmospheric boundary layer. To fully trust this numerical method, both scale and full-scale simulations are conducted and verified with the corresponding data measured in wind tunnel experiments and on-road measurements. Results in this study indicate that the adopted CFD method can generate the turbulent wind properties in terms of turbulence intensity and turbulence length scale well, but there are some obvious differences in the standard deviation of velocity fluctuations and flow angle fluctuations as compared to wind tunnel experiments and on-road measurements, and these differences are considered to be acceptable in engineering applications. Particularly, characteristics of turbulent wind are obviously different from that of the uniform wind with respect to the velocity fluctuation, flow angle fluctuation, turbulence intensity, et cetera Thus, if vehicles are expected to perform well on real roads, turbulent wind characteristics need to be considered in the aerodynamic design
- Notes:
- Vendor supplied data
- Publisher Number:
- 2022-01-5047
- Access Restriction:
- Restricted for use by site license
The Penn Libraries is committed to describing library materials using current, accurate, and responsible language. If you discover outdated or inaccurate language, please fill out this feedback form to report it and suggest alternative language.