| Article |
|---|
| Article name |
ON THE EFFICIENCY OF BOUNDARY CONDITIONS RESTORATION WHEN MODELING THE THERMAL REGIME OF FROZEN SOILS |
| Authors |
Permyakov P.. , Afanasyeva T.. postgraduate, technical assistant, tatyana_umka91@mail.ruVarlamov S.. candidate of geographical sciences, senior research scientist, vsp@mpi.ysn.ruSkryabin P.. candidate of geographical sciences, leading research scientist, vsp@mpi.ysn.ru |
| Bibliographic description |
Permyakov P., Afanasyeva T., Varlamov S., Skryabin P. On the efficiency of boundary conditions restoration when modeling of the thermal regime offrozen soils // Transbaikal State University Journal, 2017, vol. 23, no. 5, pp. 27-35. |
| Category |
Earth science |
| DOI |
519.63: 551.345 |
| DOI |
10.21209/2227-9245-2017-23-5-27-35 |
| Article type |
|
| Annotation |
In the article the algorithm of restoration of heat flux on the surface of non-uniform frozen ground at freezing — thawing is considered. Evaluating the thermal state of frozen soils under climate change and urbanization is an important task in geocryology. Disturbances to the natural environment lead to changes in geocryological conditions that threaten the stability of engineering structures. The accuracy of numerical modeling of the soil thermal regime can be increased by improving the boundary conditions. The errors in the determination of the thermal physical and mechanical characteristics and humidity of the investigated soil massif are influenced by the process of heat flux recovery. It is established that the recovery process is highly dependent on the height of the snow cover and ambient temperature |
| Key words |
frozen heterogeneous soils; iterative method; boundary inverse problem; restoration error of boundary conditions; thermal regime; modeling; soil massif; Yakutia; Tuymaad hospital; heat flow |
| Article information |
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| References |
1. Alifanov O. I. Obratnye zadachi teploobmena [Inverse Heat Transfer Problems]. Moscow: Mechanical Engineering, 1988. 280 p.
2. Alifanov O. M., Artyukhin E. A., Rumyantsev S. V. Ekstremalnye metody resheniya nekorrektnyh zadach [Extreme methods for solving ill-posed problems]. Moscow: Science, 1988. 288 p.
3. Zhirkov A. F., Varlamov S. P., Zheleznyak M. N. Materialy pyatoy konferentsii geokriologov Rossii (Proceedings of the 5th Conference of Geocryologists of Russia). Moscow: University Book, part 6, 2016. pp. 52-58.
4. Kostetskaya G. S., Radchenko T. N. Metody matematicheskoy fiziki. Uravnenie teploprovodnosti [Methods of mathematical physics. Equation of heat conductivity]. Rostov-n / D., 2016. 47 p.
5. Pavlov A. V. Teploobmen pochvy s atmosferoy v severnyh i umerennyh shirotah territorii SSSR [Heat exchange of soil with the atmosphere in the northern and temperate latitudes of the USSR]. Yakutsk: Book Publishing House, 1975. 304 p.
6. Pavlov A. V. Teplofizika landshaftov [Thermal physics of landscapes]. Novosibirsk: Science, 1979. 284 p.
7. Pavlov A. V., Perlshtein G. Z., Tipenko G. S. Kriosfera zemli (Cryosphere of Earth), 2010, vol. XIV, no. 1, pp. 3-12.
8. Samarsky A. A., Vabishchevich P. N. Chislennye metody resheniya obratnyh zadach matematicheskoy fiziki [Numerical methods for solving inverse problems of mathematical physics]. Moscow: Publishing house LCI, 2009. 480 p.
9. Tikhonov A. N., Arsenin V. Ya. Metody resheniya nekorrektnyh zadach [Methods for solving of ill-posed problems]. Moscow: Science, 1979. 288 p. |
| Full article | ON THE EFFICIENCY OF BOUNDARY CONDITIONS RESTORATION WHEN MODELING THE THERMAL REGIME OF FROZEN SOILS |
