The Unsteady Wind Environment of Road Vehicles, Part One: A Review of the On-road Turbulent Wind Environment CooperAero Limited

Format:

Conference/Event

Author/Creator:

Cooper, Kevin R., author.

Conference Name:

SAE World Congress & Exhibition (2007-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

This paper is the first of two papers that address the simulation and effects of turbulence on surface vehicle aerodynamics. This, the first paper, focuses on the characteristics of the turbulent flow field encountered by a road vehicle. The natural wind environment is usually unsteady but is almost universally replaced by a smooth flow in both wind tunnel and computational domains. In this paper, the characteristics of turbulence in the relative-velocity co-ordinate system of a moving ground vehicle are reviewed, drawing on work from Wind Engineering experience. Data are provided on typical turbulence levels, probability density functions and velocity spectra to which vehicles are exposed. The focus is on atmospheric turbulence, however the transient flow field from the wakes of other road vehicles and roadside objects are also considered. The effects of turbulence on vehicle aerodynamics and methods of experimental simulation are reviewed in a companion paper, Part 2 (Watkins and Cooper, 2007)

Notes:

Vendor supplied data

Publisher Number:

2007-01-1236

Access Restriction:

Restricted for use by site license