Thermomechanical model for impermeable porous medium with chemically active fillerстатья
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Дата последнего поиска статьи во внешних источниках: 13 мая 2020 г.
Аннотация:We consider self-consistent mathematical model for thermomechanical behavior of a linear elastic
medium which contains voids filled with chemically active substance. The medium is described
by linear thermomechanics equations. Substance in voids is described by lumped model
which accounts for energy balance, chemical reactions and phase equilibrium conditions. The
model allows to consider an arbitrary number of components which can be presented in solid and
three fluid phases (liquid and gaseous hydrocarbon phases and water phase). Distribution of
components between phases is obtained in thermodynamically consistent way and each component
can be present in each phase. To describe thermodynamical behavior of phases in a presence
of phase transitions, equation of state (EoS) approach is used based on cubic EoS widely used in
engineering practice. For numerical solution of the complete coupled system of equations we
propose an algorithm based on combination of domain decomposition method and physical splitting
approach.