| CHARACTERISTICS OF WIND DEFLECTOR FOR REDUCING AERODYNAMIC DRAG OF VAN-BODY TRUCK |
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| 引用本文： | Du Guang-sheng School of Energy and Power Engineering,Shandong University,Jinan 250061,ChinaLei Li Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,ChinaZhou Lian-di China Ship Scientific Research Center,Wuxi 214082,China. CHARACTERISTICS OF WIND DEFLECTOR FOR REDUCING AERODYNAMIC DRAG OF VAN-BODY TRUCK[J]. 水动力学研究与进展(B辑), 2003, 15(4) |
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| 作者姓名： | Du Guang-sheng School of Energy and Power Engineering Shandong University Jinan 250061 ChinaLei Li Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 ChinaZhou Lian-di China Ship Scientific Research Center Wuxi 214082 China |
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| 作者单位： | Du Guang-sheng School of Energy and Power Engineering，Shandong University，Jinan 250061，ChinaLei Li Shanghai Institute of Applied Mathematics and Mechanics，Shanghai University，Shanghai 200072，ChinaZhou Lian-di China Ship Scientific Research Center，Wuxi 214082，China |
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| 摘 要： | 1 . INTRODUCTIONVan bodytruckshavesbeeninincreasinglywideuseinrecentyearsduetomanyadvantagessuchaspreventingrain ,sunshineanddust ,loadingorunloadingconvenientlyandsafety .AlongwiththerapiddevelopmentoffreewayinChina ,theaveragespeedofautomobileshasbeen greatlyraised .Theaerodynamicshapeofthevan bodytruckisnotsogoodowingtoitslargeaerodynamicdragcausedbyitsstructure ,whichisproportionaltothespeedofthetruck ,andincreasesnotablyinthefractionofthetotaldragcomparedwiththeconventionaltrucks .E…
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CHARACTERISTICS OF WIND DEFLECTOR FOR REDUCING AERODYNAMIC DRAG OF VAN-BODY TRUCK |
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| Du Guang-sheng,Lei Li,ZHOU Lian-di. CHARACTERISTICS OF WIND DEFLECTOR FOR REDUCING AERODYNAMIC DRAG OF VAN-BODY TRUCK[J]. Journal of Hydrodynamics, 2003, 15(4) |
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| Authors: | Du Guang-sheng Lei Li ZHOU Lian-di |
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| Abstract: | In this paper, the differences in the characteristics of airflow around the van-body truck and of the aerodynamic drag, which were caused by the installation of a wind deflector, were studied by experimentally and numerically. The results show that after the installation of the deflector, the airflow around the top and bottom of the truck becoms smooth, the intensity of tail-vortex is weakened and its contribution area lessened. It also indicates that the aerodynamic characteristics of the airflow are changed distinctly and the aerodynamic drag is reduced considerably. The effect of the thin-wall deflector is better than the solid one in decreasing the drag. It is also concluded that proper design of the gap between the deflector bottom and the top of the driver cab can enhance the effect of the deflector in reducing drag. |
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| Keywords: | van-body truck wind deflector aerodynamic characteristics drag reduction |
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