作为道路行驶的模拟，全尺寸汽车的风洞试验在气动力、气动力矩和表面压力方面会产生一定的误差。这些误差的大小通常取决于以下因素: 一个 流动质量 b 参考动压的确定 c 风洞底板边界层 d 测试截面几何形状和汽车在该几何形状内的位置 和 车辆形状 f 堵塞比:车辆截面积与风洞喷管截面积之比 g 车轮转动 h 模型中的内部流动 SAE标准委员会“开喉风洞调整”的目标是记录模型干扰对汽车开喷风洞风洞试验结果的影响。本文件包含以下与本主题相关的信息: 一个 开喉风洞设计资料 b 已发表和未发表的测试数据总结 c 汽车测试的各种堵塞校正程序的文档和理论解释 d 堵塞校正程序的关键评估，特别是与其他影响相关的评估，如试验段几何形状、轿厢位置、地板边界层等。 和 确定每个风洞中堵塞和其他影响的影响的校准程序的建议 该委员会的最初目标是为基于阻塞理论的汽车开放式射流风洞推荐一个经过充分验证的修正程序（ 图1 ），此时无法建立。原因是，除了堵塞之外，其他因素，如测试段几何形状，至少与纯堵塞一样有影响。由于这些有影响的参数是风洞特有的，目前还没有通用的有效调整程序。

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 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following information related to this subject: a Design data of open throat wind tunnels b A summary of published and unpublished test data c Documentation and theoretical explanation of various blockage correction procedures for automotive tests d Critical evaluation of blockage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. e Recommendation of a calibration procedure to determine the effect of blockage and other influences in each individual wind tunnel An initial goal of the committee, to recommend a well proven correction procedure for automotive open jet wind tunnels based on blockage theory ( Figure 1 ), could not be established at this time. The reason is that, besides blockage, other factors, such as test section geometry, are at least as influential as pure blockage. As these influential parameters are wind tunnel specific, a general valid adjustment procedure is presently not available.