In the same fluid, the flow velocity is large, the pressure is small; the flow velocity is small, the pressure is strong. The fluid will flow from high pressure to low pressure.
The nozzle itself has a mechanical structure that can compress the liquid to generate high pressure. When the liquid passes through the perfume nozzle, the low-speed flowing water is compressed and then suddenly released through the micro-holes of the small nozzle (the principle is similar to the explosion of a bomb), and relatively high-speed movement occurs between the liquid and the air, and the water is torn into small drops due to the high-speed flow. A little drop. These small water droplets become fog after spraying out.
Some friends worry that perfume will evaporate soon after being left, but it is not necessary.
The perfume nozzle is designed to effectively prevent volatilization, because the contact surface between the liquid in the nozzle and the air is very small. Most nozzles are also designed to block the contact with the air. The outer cover of the perfume is closed to surround the nozzle. At this time, the air fluidity around the nozzle will be lower, so the volatilization is very low. After calculation, only a small part of the small nozzle pores to the nozzle device will evaporate, so there is no need to worry too much about perfume passing through the nozzle And the issue of volatilization.
Of course, if it is the kind of cologne-like perfume that unscrews the cap to apply on, it will quickly volatilize in the air if the cap is not closed.