Комп’ютерне моделювання дифузії домішкових речовин у середовищі з пастками за каскадного розпаду частинок: Fìz.-mat. model. ìnf. tehnol. 2017, 25:170-184

By the continuum-thermodynamic approach it is proposed the mathematical model of mass transfer of admixture in a multicomponent medium with traps under cascade decay of admixture. Whithin scope of the model the admixture concentration on certain step of decay is the source of the mass of the decayin...

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Date:2018
Author Affiliations:
  • Olha Chernukha — Центр математичного моделювання ІППММ ім. Я. С. Підстригача НАН України, вул. Дж. Дудаєва, 15
  • Yurii Bilushchak — Центр математичного моделювання IППММ ім. Я. С. Пiдстригача НАН України
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Main Authors: Chernukha, Olha, Bilushchak, Yurii
Format: Article
Language:Ukrainian
Published: Інститут прикладних проблем механіки і математики ім. Я. С. Підстригача НАН України 2018
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Online Access:https://www.fmmit.lviv.ua/index.php/fmmit/article/view/35
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Journal Title:Physico-mathematical modeling and informational technologies

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Physico-mathematical modeling and informational technologies
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Summary:By the continuum-thermodynamic approach it is proposed the mathematical model of mass transfer of admixture in a multicomponent medium with traps under cascade decay of admixture. Whithin scope of the model the admixture concentration on certain step of decay is the source of the mass of the decaying substance, that diffuses and can be sorbed, on the next step. Solutions of the initial-boundary value problems of the cascade type are constructed by the iteration procedure with using Green's functions. The formulae are obtained for finding the mass flows, as well as admixture quantity pass through the layer, at each stage of decay. Software for simulation of the diffusion processes in the body with traps under cascade decay of admixture substances is designed. References Bekman, I. N. (2011). Radioaktivnost i radiaciya. Radiohimiya, (Vol. 1). MO, Shyolkovo: Izdatel Marhotin P.Yu. Kolobashkin, V., Rubcov, P., Ruzhanskij, P., Sidorenko, V. (1983). Radiacionnye harakteristiki obluchennogo yadernogo topliva. M., Energoatomizdat. Seredina, V. P. (2015). Zagryaznenie pochv. Tomsk: Izdatelskij Dom Tomskogo gosudarstvennogo universiteta. Bolshov, A., Goloviznin, V., Dyhne, A., Kiselev, V., Kondratenko, P., Semenov, V. (2004). Novye podhody k ocenke bezopasnosti zahoronenij radioaktivnyh othodov. Izvest. RAN. Energetika, 4, 99-108. Goloviznin, V., Kiselev, V., Korotkin, I., Yurkov, Yu. (2004). Pryamye zadachi neklassicheskogo perenosa radionuklidov v geologicheskih formaciyah. Izvestiya RAN. Energetika, 4, 121-130. Moiseev, M., Zavershinskij, I. (2005). Diffuziya v srede so sluchajno raspredelennymi lovushkami. Matem. modelirovanie i kraev. zadachi, 2, 185-187. Burak, Ya., Chaplia, Ye., Chernukha, O. (2006). Kontynualno-termodynamichni modeli mekhaniky tverdykh rozchyniv. Kyiv, Naukova dumka. Chaplia, Ye. Ia., Chernukha, O. Iu. (2003). Fizyko-matematychne modeliuvannia heterodyfuznoho masoperenosu. Lviv: SPOLOM. Chaplya, Y., Chernukha, O., Bilushchak, Y. (2012). Contact initial boundary-value problem of the diffusion of admixture particles in a two-phase stochastically inhomogeneous stratified strip. Journal of Mathematical Sciences, 183(1), 83-99. DOI https://doi.org/10.1007/s10958-012-0799-y Sneddon, I. (1955). Preobrazovaniya Fure. M: Izd-vo inostr. lit-ry.
DOI:10.15407/fmmit2017.25.170