缩尺模型风洞试验及其在汽车开发中的作用

Model-windtunnel Test and Its Function in Automobile Designs

汽车缩尺模型风洞试验技术的关键是缩尺模型与真车的几何相（包括底板和发动机室这些细节部分）、试验中的雷诺数足够大，以及地面边界效应的模拟.模型风洞是汽车开发过程中的一种重要工具，尤其是在汽车外形最佳化设计中得到广泛运用.

The key of automobile model-windtunnel test is the similarity between the model and the real vehicle with a very large Reynolds number in the test and the simulation 0f the ground effect. The model windtunnel is an important laboratory device in the automobile design and applied extensively in the optimization of the automobile form.