SAE J2084-2016
Aerodynamic Testing of Road Vehicles - Testing Methods and Procedures

Standard No.

SAE J2084-2016

Release Date

2016

Published By

SAE - SAE International

Latest

SAE J2084-2016

Scope

The scope of this SAE Information Report is confined to wind-tunnel testing@ although it is recognized that many aspects of the aerodynamic characteristics of road vehicles can be investigated in other test facilities (such as water-tanks) or@ especially@ on the road. For example@ coastdown testing is often used to determine aerodynamic drag (either in isolation or as part of the total resistance)@ and artificial gust generators are used to investigate the sensitivity of vehicles to cross-wind gusts. Also excluded from the present Report are climatic wind-tunnel tests of road vehicles@ which are defined in more detail in Section 3. The Report covers the aerodynamic requirements of a wind-tunnel for automotive testing@ together with the facility equipment needed and the requirements affecting the test vehicle or model. The test methods and procedures described here include those for six-component force measurements and measurements of pressures and velocities both on the vehicle/model surface and in the surrounding flow-field. Flow visualization techniques are outlined@ with reference to the detailed coverage in a related SAE Information Report (2). In addition@ the reduction@ analysis@ and presentation of wind-tunnel data are considered@ with further references to associated SAE Information Reports (3@4) on corrections to be applied for wind-tunnel blockage effects. Finally@ methods are discussed for the validation of the wind-tunnel data@ e.g.@ by tunnel-to-road correlation studies. As already indicated@ this document has been prepared in conjunction with a number of other SAE Information Reports and Recommended Practices (1-5)@ each of which provides greater detail than is given here on its particular aspect of automotive aerodynamic testing.

SAE J2084-2016 history

• 2016 SAE J2084-2016 Aerodynamic Testing of Road Vehicles - Testing Methods and Procedures
• 1993 SAE J2084-1993 Aerodynamic Testing of Road Vehicles-Testing Methods and Procedures