Abstract
An algorithm of integration of the nonlinear heat-conduction equation for a semi-bounded medium with a uniform initial distribution of temperature and its constant value on the surface in the case of nonlinear dependence of thermophysical characteristics on temperature is described. This algorithm can be used to test numerical grid methods of calculation of temperature fields in freezing and thawing of grounds. The procedure of correction of a step-by-step mechanism of temperature variation in numerical calculation in the zone of intense phase transitions by a grid method was suggested and tested.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 6, pp. 112–119, November–December, 2004.
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Brovka, G.P., Ivanov, S.N. Calculation of temperature fields in the ground with water-ice phase transitions in the temperature spectrum. J Eng Phys Thermophys 77, 1192–1200 (2004). https://doi.org/10.1007/s10891-005-0014-9
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DOI: https://doi.org/10.1007/s10891-005-0014-9