The window opened like this, fuel-efficient! Ventilation again!
Do not look at the only four windows that can be opened in the car, plus only five at the top of the sunroof, but the knowledge of the arrangement and combination of these can be great!
Single opening of the front or rear side windows facilitates the discharge of smoke smoke
Smoking friends generally have experience. The car opens the front window during driving. If the window is lowered by a narrow gap, the air in the car will push the smoke out of the car.
There are two states in this scenario. Under the condition of slit ventilation, it is basically the same as opening the single-side front window. In the open ventilation state, the rear passengers will obviously feel the crosswind. At a certain speed, the crosswind is generally not It can cause discomfort to passengers.
Open two windows in the same high-speed insecure
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Under this scenario, the outside air flow will be poured into the car directly on the side of the vehicle. The passengers at the window will have a strong sense of windwardness. It is not advisable for passengers in the vehicle to adopt such ventilation in mid-high speed driving.
Only unilateral front window can quickly discharge odor
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At this time, the air entering the compartment is obviously unbalanced, and the air flow in the vehicle has a clear sense of direction. This ventilation method is suitable for rapid odor removal in the car;
Only one side of the rear window ventilation is softer
Unlike the former, the rear side of the rear compartment of the compartment gathers a large amount of air to form a high-pressure area. This type of ventilation is relatively gentle, and the passengers in the former (only one side of the front window is closed) do not have obvious windy feeling. , is a good way of ventilation.
Simultaneous opening and closing of windows with low wind noise
The air that enters the car through the front window interacts with the air that enters the car from the rear, creating a small whirlwind. The wind noise generated by this method is relatively low and it is an ideal ventilation method.
The windows are all open and easy to chaos
In this mode, a large amount of air is poured into the passenger compartment. The air flow in the exhaust outlet of the vehicle reaches a peak value. The large amount of air accumulated in the vehicle easily interacts to generate turbulent flow. In extreme cases, even small objects with lighter interior textures can be overturned. . Therefore, emissions are generally not used in this way.
Window care
In daily driving, it is inevitable that it will be affected by unstable factors such as cross wind. Therefore, it is recommended that you select a proper ventilation method according to the weather conditions at the time of driving and the speed.
In principle, it is possible to use a window-opening ventilation method when driving at a low speed, so that it is both fuel-efficient and close to nature. At medium and high speeds, it is generally not advisable to open windows for long-term ventilation, because long-term ventilation during high-speed conditions will inevitably generate large wind noise and wind resistance, and fuel economy will also decline.
It is also worth noting that, even if the vehicle is driven at high speed for a long period of time, the ventilation of the vehicle window should be opened midway or the internal/external circulation should be used alternately so that the air in the vehicle can be exchanged.
Reminder: After parking, especially after parking at high temperatures, open the window to allow fresh air to enter the passenger body is better!
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