The Aerodynamic Development of a New Dongfeng Heavy Truck

2015-01-2886

09/29/2015

Event
SAE 2015 Commercial Vehicle Engineering Congress
Authors Abstract
Content
The development of a new Dongfeng Heavy truck had very strict targets for fuel consumption. As the aerodynamic drag plays a crucial role for the fuel consumption, a low drag value had to be achieved. It was therefore essential to include evaluation and optimization of the aerodynamics in the development process. Because wind tunnel facilities were not available, the complete aerodynamics development was based on digital simulation. The major portion of the aerodynamic optimization was carried out during the styling phase where mirrors, sun visor, front bumper and aero devices were optimized for drag reduction. For optimizing corner vanes and mud guards, self-soiling from the wheel spray was included in the analysis. The aero results did also show that cooling air flow rates are sufficiently high to ensure proper cooling. During the detailed engineering phase an increase of the drag above the target required further optimization work to finally reach the target. Furthermore it was confirmed during this phase with thermal simulations that the design of grille openings, cooling module and fan can meet engine cooling requirements.
Meta TagsDetails
DOI
https://doi.org/10.4271/2015-01-2886
Citation
Tang, K., He, L., Zhao, Y., Friz, H. et al., "The Aerodynamic Development of a New Dongfeng Heavy Truck," SAE Technical Paper 2015-01-2886, 2015, https://doi.org/10.4271/2015-01-2886.
Additional Details
Publisher
Published
Sep 29, 2015
Product Code
2015-01-2886
Content Type
Technical Paper
Language
English