Influence Analysis of Pit-type Non-smooth Elements Arrangement on Aerodynamic Drag of Vehicle
[1]Xie Jinfa,Zhang Jinglong.Influence Analysis of Pit-type Non-smooth Elements Arrangement on Aerodynamic Drag of Vehicle[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):86-90.[doi:10.13705/j.issn.1671-6833.2016.05.017]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 05
Page number:
86-90
Column:
Public date:
2016-11-25
- Title:
- Influence Analysis of Pit-type Non-smooth Elements Arrangement on Aerodynamic Drag of Vehicle
- Keywords:
- pit-type non-smooth element; arrangement; automobile; aerodynamic drag; influence analysis
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2016.05.017
- Abstract:
- Based on the non-smooth surface of bionics, the non-smooth surface formed by the pit-type non-smooth units arranged in rectangular arrangement, diamond arrangement and equidifferential arrangement was respectively arranged on the top of the MIRA straight-back car model, and the influence of different arrangements on the aerodynamic drag of the car was analyzed. .By applying the CFD method, the finite element analysis software ANSYS is used for numerical simulation. The simulation results show that the pit-shaped non-smooth surface arranged in a rectangle can obtain the best aerodynamic drag reduction effect, and the total drag reduction rate can reach 6.52%. Further The analysis found that the reason is that the concave-shaped non-smooth unit body arranged in a rectangle can better reduce the pressure difference resistance and surface friction resistance of the model, and finally reduce the aerodynamic resistance of the model.
- References:
- -
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