Mathematical and computer modelling of interconnected processes of moisture- and heat mass transfer in non-saturated soil layer
Fìz.-mat. model. ìnf. tehnol. 2021, 32:75-79
DOI:
https://doi.org/10.15407/fmmit2021.32.075Keywords:
moisture transfer, mass transfer, heat transfer, head, moisture, concentrationAbstract
The paper presents the mathematical modelling of joint processes of moisture transfer and mass transfer in a non-saturated medium taking into account Osmos phenomena under non-isothermic conditions. Numeric calculations of corresponding boundary tasks were found by a method of finite differences using non-evident and monotonous differential schemes adapted for solving non-linear differential equations. As a result of program implementation of the constructed calculation algorithm, the distribution was found of salt solutions concentration under joint transfers and the impact of heat transfer was determined upon distributions of moisture heads and salts concentration in a soil mass. Obtained results may be used to determine moisture heads and salts solutions spreading in soils which is an applied task.
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DOI doi.org/10.1007/s10891-015-1285-4
