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Aerodynamic Drag Reduction of Simplified Vehicles in Ground Effect by Active Flow Control
| 题名： | Aerodynamic Drag Reduction of Simplified Vehicles in Ground Effect by Active Flow Control |
| 正文语种： | 中文 |
| 作者： | Cui wenshi Han yekai Baodi Yang Zhigang |
| 作者单位： | Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems Automotive Wind Tunnel Center,Tongji University |
| 关键词： | active flow control simplified vehicles drag reduction synthetic jets ground effect |
| 摘要： | In order to decrease fuel consumption of commercial vehicles,based on Large-eddy simulation,the influence of driving parameters of synthetic jets on aerodynamics drag of simplified vehicles in ground effect.The mean-time results indicate that with synthet-ic jets located at the junction of the slant and roof,flow separation could be suppressed on the slant,which could result in a smaller separation zone and aerodynamic pressure increase,so maximum drag reductions 18.55%with the driving frequency 500Hz by synthetic jets is realized.While the same-signed jets with the driving frequency from 40 to 300Hz are installed at the upper and lower of the vertical base of the body,resulting in a shorten wake region and the pressure reduction on the vertical base. |
| 会议日期： | 20171024 |
| 会议举办地点： | 上海 |
| 会议名称： | 第19届亚太汽车工程年会暨2017中国汽车工程学会年会 |
| 出版日期： | 1024-01-20 |
| 母体文献： | 第19届亚太汽车工程年会暨2017中国汽车工程学会年会论文集 |
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