The Aerodynamics of Heavy Vehicles III by Andreas Dillmann & Alexander Orellano

Author:Andreas Dillmann & Alexander Orellano
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

3 Influence of Wheel Housing Design

When the flow field investigation was completed, the study of the influence of different wheel housing design parameters was started. Several design parameters were investigated in order to study the influence of the wheel housing design on the local flow field, as well as investigating the potential for reducing the drag by modifying the geometry. A large variety of design parameters were identified and the selection had to be limited in order to be able to perform detailed investigations of the parameters individually. It was chosen to investigate parameters that would be possible to implement on a heavy truck without interfering with the steering capability or the suspension travel, as well as being changes that were feasible on production vehicles. Therefore no extreme designs were investigated. It was chosen to focus on the front wheel housings instead of the entire underbody area of the vehicle since the flow approaching the front wheels is relatively undisturbed. There is also more room for modifications to the wheel housing design in the foremost part of the tractor compared to the rear wheel housings.

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