How to Reduce Wind Resistance in Cars?
3 Answers
Having a flat underbody and fully utilizing the ground effect can both reduce wind resistance in cars. Here are some related introductions on reducing wind resistance: 1. Flat underbody: A flat underbody not only reduces the resistance of airflow passing through but also minimizes the lift generated by turbulence. The ideal underbody consists of a complete lightweight underbody armor, but this is generally not cost-effective from a financial perspective. Electric vehicles do not have an exhaust system, so their underbody design is naturally flatter. With reasonable component layout, they usually achieve better aerodynamic performance. 2. Fully utilize the ground effect: The ground effect involves using body skirts to divert airflow that would otherwise pass under the car to the sides of the vehicle, while also reducing the amount of airflow entering the underside. This creates a low-pressure area between the car and the ground, resulting in a pressure difference between the body and the underbody, generating additional downforce. This enhances tire grip, reduces rolling friction, and improves energy efficiency. 3. Various airflow guiding devices: At points where the vehicle's body shape changes by more than 12 degrees (such as the rear), using aerodynamic devices like spoilers and diffusers can improve the vehicle's aerodynamic performance. The principle is to guide airflow more smoothly over the body, preventing turbulence around the vehicle.
Hey, I often drive for trips and found that reducing wind resistance makes high-speed driving smoother. First, keeping the windows closed minimizes turbulence—it's better to use the AC at high speeds rather than opening windows. Also, avoid piling stuff on the roof; roof racks significantly increase air turbulence, so keeping the airflow smooth helps. Speed matters too—try to maintain a steady pace without sudden acceleration or braking to reduce unnecessary disturbances. Keep the car's surface clean and smooth; regular washing and waxing lower friction. Opt for low-rolling-resistance tires and ensure proper tire pressure to reduce overall wind resistance and save fuel. Lastly, personal habits like avoiding excessive speed in windy areas can noticeably improve stability.
From an environmental perspective, reducing air resistance can save fuel and reduce pollution. It is recommended to choose models with streamlined designs and avoid angular body shapes. Maintain a moderate speed during daily driving, as speeding increases air impact. Avoid installing unnecessary accessories on the car, such as large rearview mirrors or decorations, as they disrupt airflow. For tires, opt for narrower eco-friendly tires with sufficient pressure. Keep windows tightly closed, as opening them at high speeds allows wind to rush in, creating significant resistance. Vehicle maintenance is also crucial—regularly clean the engine hood and undercarriage to reduce resistance caused by dirt. Consistently following these practices will make the car more efficient and lessen the environmental burden.
