中国科技论文在线

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2006年12月02日

杜广生，王德昌，雷丽，周连第

农业机械学报，2002，33（5）：27～30，-0001，（）：

-1年11月30日

用实验的方法验证了RNG k-ε紊流模型模拟厢式货车外部流场的计算精度明显高于标准k-ε紊流模型；给出了某国产厢式货车外部流场的计算结果，着重分析了当厢式货车基本参数变化时，尾流特性的变化情况。通过计算和分析得出了尾流旋涡的位置和强度与气动阻力的关系，对厢式货车气动外形的设计具有指导作用。

厢式载货汽车尾流数值模拟

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2006年12月02日

【期刊论文】STUDY ON AERODYNAMIC CHARACTERISTICS OF VAN-BODY TRUCKS

杜广生， Zhou Lian-di， Xiao Fu-ming， Miao Guo-ping， Dai Shi-qiang， Hu Chang-sheng， Gao Huang-qiu， Li Bai-qi， Zhou Lian-di， Zhu De-xiang

Journal of Hydrodynamics, Ser. B, 2 (2002), 121，-0001，（）：

-1年11月30日

摘要

The aerodynamic characteristics of the van-body truck were studied by means of theoretical analysis, numerical simu-lation and wind tunnel experiments. The concept of critical length was presented for the van-body truck in wind tunnel experiments, the proper critical Reynolds number was found and the effects of ground parameters in ground effect simulation on the aerodynamic measure-ments were examined. It shows that two structure parameters, van height and the gap between the cab and the van, can obviously influ-ence the aerodynamic characteristics, and the additional aerodynamic devices, the wind deflector and the vortex regulator in the rear, can considerably reduce the aerodynamic drag of the van-body truck. Numerical simulations provided rich information of the flow fields around the van-body trucks.

van-body truck,， aerodynamic characteristics,， tur-bulence model,， wind deflector

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2006年12月02日

【期刊论文】SIMULATION OF 3-D FLOW AROUND A VAN2BODY TRUCKWITH RNG K-εTURBULENCE MODEL

杜广生， Du Guang-sheng， Wang De-chang， Lei Li

Journal of Hydrodynamics, Ser. B, 4 (2001), 98-101，-0001，（）：

-1年11月30日

摘要

In this paper it is proved that the calculation pre-cision of the outside flow field of the van-body truck using RNG k-εturbulence model is higher than that using standard k-εturbu-lence model by means of experiments. The calculation results of the outside flow field of a certain domestic van-body truck are given. And by analyzing and comparing the different tail flow plots, the tail flow structural characteristics and the relationship between the position and the intensity of the tail vortex and the aerodynamic drag is obtained, which can direct the design of the outside aerodynamic shape of the van2body truck.

van-body truck,， RNG k-εmodel,， numerical simulation