Heat transfer and phase transitions of water in multi-layer cryolithozone-surface systems

被引:0
|
作者
Khabibullin, I. L. [1 ]
Nigametyanova, G. A. [1 ]
Nazmutdinov, F. F. [1 ]
机构
[1] Bashkir State Univ, Ufa, Russia
关键词
permafrost zone; permafrost; land cover; thermo-insulating layer; heat transfer; temperature distribution; soil freezing and thawing;
D O I
10.1134/S0869864318010092
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A mathematical model for calculating the distribution of temperature and the dynamics of the phase transfor-mations of water in multilayer systems on permafrost-zone surface is proposed. The model allows one to perform calculations in the annual cycle, taking into account the distribution of temperature on the surface in warm and cold seasons. A system involving four layers, a snow or land cover, a top layer of soil, a layer of thermal-insulation materi-al, and a mineral soil, is analyzed. The calculations by the model allow one to choose the optimal thickness and com-position of the layers which would ensure the stability of structures built on the permafrost-zone surface.
引用
收藏
页码:101 / 108
页数:8
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