The Application of Fluid Mechanics in The Research of Classic Car Design In BMW

Abstract

Since Thomas Newcomen invented the world's first steam engine in 1712 and applied it to automobiles for the first time in 1769. For the next 100 years or so, efforts were made to increase the horsepower of automobiles until 1889 when people realized the importance of aerodynamics and began to take it forward. This article will study the design and interpretation of the shapes of some devices that help to reduce the air drag coefficient of an automobile and the principles behind them, based on the principles of hydrodynamics, Bernoulli's principle, the vortex principle, and the boundary layer principle. This paper follows the logic of juxtaposition. From the design used by BMW on its classic models, it presents the effect of different accessories on the wind resistance of the vehicle. The improvement of the aerodynamics of the car with designs such as the rear wing as well as air intakes on the aerodynamics of the whole car is identified. It is hoped that the arguments derived in this paper will help automotive practitioners in their designs.