SAE J2071-1994
公路车辆的空气动力学测试.开式风洞调整
Aerodynamic Testing of Road Vehicles - Open Throat Wind Tunnel Adjustment
SAE J2071-1994 发布历史
As a simulation of road driving, wind tunnel testing of full-size vehicles produces certain errors in the aerodynamic forces, aerodynamic moments, and surface pressures. The magnitude of these errors, in general, depends on the following: a.) Flow quality, b.) determination of the reference dynamic pressure, c.) Wind tunnel floor boundary layer, d.) test section geometry and position of the car within that geometry, e.) shape of the vehicle, f.) Blockage ratio: The ratio of the cross-sectional area of the vehicle to the cross-sectional area of the wind tunnel nozzle, g.) Wheel rotation, and h.) Internal flow in the model. The SAE Standards Committee, Open Throat Wind Tunnel adjustments, had as a goal to document the knowledge of the influence of model interference on wind tunnel test results for automotive open jet wind tunnels. This document contains the following information related to this subject: a.) Design data of open throat wind tunnels, b.) A summary of published and unpublished test data, c.) Documentation and theoretical explanation of various blockage correction procedures for automotive tests, d.) Critical evaluation of blockage correction procedures, especially in relation to other influences, such as test section geometry, position of the car, floor boundary layer, etc., and e.) recommendation of a calibration procedure to determine the effect of blockage and other influences in each individual wind tunnel.
SAE J2071-1994由美国机动车工程师协会 US-SAE 发布于 1994-06-01。
SAE J2071-1994 在中国标准分类中归属于: T04 基础标准与通用方法，在国际标准分类中归属于: 43.020 道路车辆综合。
SAE J2071-1994的历代版本如下：
- 1990年03月01日 SAE J2071-1990 SAE J 2071-1990
- 1994年06月01日 SAE J2071-1994 公路车辆的空气动力学测试.开式风洞调整
- 标准号
- SAE J2071-1994
- 发布日期
- 1994年06月01日
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- T04
- 国际标准分类号
- 43.020
- 发布单位
- 美国机动车工程师协会
- 引用标准
- 700035 800139 800140 810187 830301 860093 RAE Tech Report 78151
- 适用范围
- As a simulation of road driving, wind tunnel testing of full-size vehicles produces certain errors in the aerodynamic forces, aerodynamic moments, and surface pressures. The magnitude of these errors, in general, depends on the following: a.) Flow quality, b.) determination of the reference dynamic pressure, c.) Wind tunnel floor boundary layer, d.) test section geometry and position of the car within that geometry, e.) shape of the vehicle, f.) Blockage ratio: The ratio of the cross-sectional area of the vehicle to the cross-sectional area of the wind tunnel nozzle, g.) Wheel rotation, and h.) Internal flow in the model. The SAE Standards Committee, Open Throat Wind Tunnel adjustments, had as a goal to document the knowledge of the influence of model interference on wind tunnel test results for automotive open jet wind tunnels. This document contains the following information related to this subject: a.) Design data of open throat wind tunnels, b.) A summary of published and unpublished test data, c.) Documentation and theoretical explanation of various blockage correction procedures for automotive tests, d.) Critical evaluation of blockage correction procedures, especially in relation to other influences, such as test section geometry, position of the car, floor boundary layer, etc., and e.) recommendation of a calibration procedure to determine the effect of blockage and other influences in each individual wind tunnel.