Površinsko širjenje zmrzlin

Zmrzovanje na površini je odvisno od njene temperature, temperature atmosfere, količine vode v sistemu, ter od površine same. Dovolj gosta porazdelitev kapljic, ki nastanejo na površini, lahko vodi v ”verižne reakcije“. Takšen režim dosežemo z visoko vlažnostjo plina. V tem primeru širjenje zmrzline poteka hitreje kot v suhi atmosferi, ko to poteka izključno preko difuzije vodne pare iz okoliške atmosfere. Pri določenih pogojih, pri srednji vlažnosti atmosfere, širjenje poteka preko vmesnega načina, kjer so verižne reakcije omejene.

Surface spreading of frost

Frost formation depends on the type of surface and its temperature, but also on humidity and temperature of the atmosphere. A dense enough distribution of water droplets that form on the surface can lead to “chain reactions”. We get this kind of regime by having a very humid atmosphere surrounding the surface. This way, frost spreading is faster than in a dry atmosphere where the spreading happens only due to the diffusion of water vapor from the surrounding gas. At certain conditions, at medium atmosphere humidity, the spreading happens in an intermediate mode, in which the chain reactions are limited.