Computer modelling of the dynamic system «porous medium – moisture – chemical substance» in the case of soil desalinization by rainfalls (a three-dimensional case)

• Autorzy: Kozhushko Oksana D , Martyniuk Petro M.

Warianty tytułu

PL

Modelowanie komputerowe systemu dynamicznego«ośrodek porowaty – wilgoć – substancja chemiczna» na przykładzie wpływu opadów na odsalanie gruntu (przypadek przestrzenny)

• Języki publikacji: EN

Abstrakty

EN

Mathematical model of moisture transport taking into account variable porosity has been investigated numerically. Changes in porosity are caused by dissolution of chemical substances associated with soil skeleton. The finite element solution of the problem in the case of regular rainfall has been found. Program realization of the corresponding algorithms has been implemented in FreeFem++ computational environment. Numerical experiments have been carried out and the impact of rainfall on desalinization of soil with high concentration of salts in the solid component has been determined.

PL

Numerycznie badano model matematyczny transportu wilgoci o zmiennej porowatości. Zmiany porowatości są spowodowane rozpuszczaniem substancji chemicznych związanych ze szkieletem gruntu. Znaleziono numeryczne rozwiązanie problemu w przypadku regularnych opadów. Programowa realizacja odpowiednich algorytmów została zaimplementowana w środowisku obliczeniowym FreeFem++. Przeprowadzono eksperymenty numeryczne i określono wpływ opadów na odsalanie gruntu przy wysokim stężeniu soli w twardym komponencie.

Słowa kluczowe

EN

mathematical model; porous medium; moisture transport; solute transport; finite element method

PL

model matematyczny; ośrodek porowaty; przenoszenie wilgoci; przenoszenie masy; metoda elementów skończonych

• Wydawca: Wydawnictwa Uczelniane Politechniki Bydgoskiej im. Jana i Jędrzeja Śniadeckich
• Czasopismo: Zeszyty Naukowe. Telekomunikacja i Elektronika / Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy
• Rocznik: 2018
• Tom: nr 21
• Strony: 47--60
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Kozhushko Oksana D

• National university of water and environmental engineering – Department of applied mathematics 11 Soborna st., 33028, Rivne, Ukraine

autor

Martyniuk Petro M.

• National university of water and environmental engineering – Department of applied mathematics 11 Soborna st., 33028, Rivne, Ukraine

Bibliografia

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