The poem of Ice Window Flower: Langyuan Fairy is full of flowers, and strange flowers are painted on the winter window. Ode to Frost Flowers.
Description of ice window grilles:
Due to the cold night in winter, there are some water vapor or water droplets on one side of the room that meet the cold window and condense the ice with strange physical and geometric state that cannot be copied.
Historical origin of ice window grilles:
Before 198s, magnificent ice window grilles were often seen in winter mornings in the north. After the 198s, with the development of China's reform and opening up, people's living standards have improved significantly. The north is generally equipped with central heating, and the indoor temperature is high, so it is difficult for water vapor and water droplets to condense into ice on the windows, and the beautiful physical phenomenon of ice window grillage is less and less seen.
Reasons for the formation of ice grilles:
In winter, the temperature difference between indoor and outdoor is very large: it is warmer indoors, but it is very cold outdoors. When the water vapor in the indoor air touches the cold glass, it will form ice crystals around the dust on the glass. Initially, these ice crystals were hexagonal like snowflakes; Then gradually expand to the surrounding development, forming ice window grilles.
The shape of ice window grilles is related to indoor temperature, humidity and the smoothness of glass. If the indoor humidity is high, the temperature is low, the water vapor crystallizes quickly, and the pattern on the window is clear, it is easy to form branch-shaped ice window grilles.
on the contrary, it is easy to form fragments and fans; Where the glass surface is rough or dusty, the pattern of ice window grilles will be thicker; If the glass surface is smooth, the ice pattern will be thinner. Therefore, there are various shapes of ice flowers.
Patterns of ice window grilles:
1. Causes of wind and gravity:
During condensation, there may be a slight cold wind blowing in the gap near the window (which is very important for the formation of window grilles), which may make condensation and melting form a dynamic balance process, resulting in the flow of tiny ice water, and eventually form landscape paintings or other forms of ice window grilles.
In particular, there are no patterns on both sides of some window grilles or the patterns are monotonous. There is a kind of ice window grilles that are not very beautiful, that is, the two sides are horizontal, the middle is blurred, and the up and down is vertical, which is actually the best expression of this reason.
2. The properties of the glass itself, especially the surface morphology:
The surface condition (flatness or stain) of the glass will directly affect the accumulation process and morphology of the above-mentioned small snowflakes, and also directly affect the infiltration and flow of wind, and also determine the flow of the above-mentioned tiny ice water, so it can affect the morphological formation of ice window flowers. Like all kinds of strange ferns, it is a realistic portrayal of this paragraph.