Numerical Analyses to Investigate the Impact of External Sun Visor on Aerodynamic Drag of Heavy-Duty Commercial Truck

Han Bo Yang; Xing Jun Hu; Teng Fei Li

doi:10.4028/www.scientific.net/AMM.602-605.787

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 602-605Numerical Analyses to Investigate the Impact of...

Numerical Analyses to Investigate the Impact of External Sun Visor on Aerodynamic Drag of Heavy-Duty Commercial Truck

Abstract:

Aerodynamic drag is one of the most important sources of the driving resistance suffered by an on-road heavy-duty truck. The previous studies have rarely involved the role of the external sun visor. Therefore, numerical method is used for the research of the influence of six kinds of sun visors differenced by shapes or layouts on the aerodynamic drag reduction. It is demonstrated that the sun visor has a great influence on the local flow field where it is fixed, while a relatively small effect on the global flow field. Moreover, compared to the original one, the C_D values of each case have different degrees of reduction which illustrates that an appropriate shape and layout of a sun visor benefits the air drag reduction, the largest decline is 4.7%.

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Periodical:

Applied Mechanics and Materials (Volumes 602-605)

Pages:

787-790

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.602-605.787

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Online since:

August 2014

Authors:

Han Bo Yang, Xing Jun Hu*, Teng Fei Li

Keywords:

Aerodynamic Characteristics, Aerodynamic Drag, Heavy-Duty Truck, Numerical Simulation, Sun Visor

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