MODELING OF UNDERGROUND RADON TRANSFER PROCESSES IN SOIL AND ITS EXHALATION INTO THE SURFACE LAYER

Pestova О.V, Pestov D.A, Shishenia A.V

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A mathematical model of the radon emanation mass transfer process in the loose sediments and in the surface layer including diffusion and convection is given in the article. The initial and boundary conditions were validated from the physical point of view.There is shown the derivation of boundary conditions on the boundary of two mediums. The built discrete model, based on the grid with variable steps over space and time, is reduced to the system with three diagonal matrix. It is solvedby the sweep method under the preceding requirements of stability and convergence to this method.Received mathematical model allows to research space-time radon distribution in soil and atmosphere within the solution of one task.The paper presents the results of a study of space - time distribution of radon in a view of the different physical conditions.

Библиографическая ссылка

Пестова О.В, Пестов Д.А, Шишеня А.В МОДЕЛИРОВАНИЕ ПРОЦЕССОВ ПЕРЕНОСА ПОДПОЧВЕННОГО РАДОНА В ГРУНТЕ И ЕГО ЭКСХАЛЯЦИИ В ПРИЗЕМНЫЙ СЛОЙ АТМОСФЕРЫ // Научное обозрение. Физико-математические науки . 2020. № 1. С. 46-46;
URL: https://physics-mathematics.ru/en/article/view?id=60 (дата обращения: 24.06.2026).