This article highlights the advances in the aerodynamic development and test processes of both road and motorsports cars over the last two decades, including explaining the main driving forces behind this evolution. The relentless and continuous drive to improve efficiency and correlation between computational fluid dynamics, real-time simulation, wind tunnel testing, and the track is explained. Key enabling technologies are described, such as: continuous motion systems; high-speed data acquisition systems; steel moving belt ground planes with under floor load cells; on-demand robotic particle image velocimetry; pneumatic model tyres with integral sidewall and contact patch deflection systems; driver simulators and rapid prototyped rake systems for track cars. Finally, as aerodynamicists attempt to simulate and test within ever more complex and realistic environments potential future directions and emerging trends are outlined, including gusts, aeroelasticity, adaptive cooling, and cornering.

中文翻译：

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汽车和赛车空气动力学开发的最新进展和测试过程

本文重点介绍了过去二十年公路和赛车在空气动力学开发和测试过程中的进步，包括解释这种演变背后的主要驱动力。解释了提高计算流体动力学、实时模拟、风洞测试和轨道之间的效率和相关性的不懈努力。描述了关键的使能技术，例如：连续运动系统；高速数据采集系统；带地板下称重传感器的钢制移动带接地平面；按需机器人粒子图像测速；具有一体式侧壁和接触面偏转系统的充气模型轮胎；用于轨道车的驾驶员模拟器和快速原型耙系统。最后，