What is a straight-through flow?

Direct flow is a kind of air flow phenomenon in meteorology. Simply put, it is because of wind pressure that wind flows in the internal space of buildings. Of course, this phenomenon is harmful.

Through flow usually occurs in gaps between buildings, high walls, rooms with opposite doors and windows or similar passages. Due to the different atmospheric temperatures on both sides of air circulation, air pressure leads to the rapid flow of air, and it is also hindered by buildings, gaps, doors and windows, corridors and so on. Provide a circulation channel for the rapid circulation of air. The wind direction is generally from the shady side to the sunny side, and the wind speed depends on the temperature difference between the two sides. The greater the temperature difference, the greater the wind speed, mostly in spring and autumn.

Extended data:

Harm of through flow: north-south convection in the bedroom, through flow is naturally the most comfortable way to enjoy the cool. However, experts warn that when people steam outdoors at high temperature in summer, their sweat will leak and their pores will open, especially when they are tired or asleep. At this time, their body temperature will drop and their blood will become weak. If the cross flow is blown for a long time without proper heat preservation, germs will often take advantage of it and cause diseases such as wind-heat cold and scapulohumeral periarthritis.

Therefore, when taking a lunch break or sleeping at night, you should avoid nudity. Even if you are tired, don't try to be happy. A person sleeps on an open-air balcony, corridor, under a tree, by the river or by the sea, otherwise there will be a danger of shoulder pain.