Comparing Static and Dynamic Testing Techniques for the Crosswind Sensitivity of Road Vehicles

A. R. Macklin; K. P. Garry; J. P. Howell

doi:10.4271/960674

1996-02-01

Comparing Static and Dynamic Testing Techniques for the Crosswind Sensitivity of Road Vehicles 960674

An accurate simulation of a ground vehicle interacting with a crosswind gust can be achieved by using a moving model mounted on a track such that it can traverse the working section of a conventional atmospheric boundary layer wind tunnel. This paper will briefly describe the facility that is being developed at Cranfield University and detail comparisons between static and dynamic data from tests on three basic model configurations. Under the same nominal wind input, data from static tests compares well with that from dynamic tests at yaw angles below 15°. At higher yaw angles, after the onset of “large scale” separation, the dynamic values of the forces and moments become larger than the static values.

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Comparing Static and Dynamic Testing Techniques for the Crosswind Sensitivity of Road Vehicles 960674

SAE MOBILUS