Steady-state two-dimensional diffusion of a radioactive impurity in a channel with sorbing walls / Ivanov O.V., Akin'shin V.D., Seleznev V.D. // Journal of Engineering Physics (English Translation of Inzhenerno-Fizicheskii Zhurnal). - 1989. - V. 55, l. 6. - P. 1385-1388.

ISSN:

00220841

Type:

Article

Abstract:

The study of diffusion of impurity components in gas-filled porous media is of great importance in developing a whole range of technologies associated with processes of drying, absorption, desorption, and heterogeneous catalysis, as well as in solving radioecological problems. The simplest model of capillary-porous media in the form of a set of cylindrical capillaries allows the discussion to be confined to diffusion in a single capillary. Further analysis is carried out, as a rule, on the assumption that the bulk and absorption phases are in equilibrium in each cross section of the capillary, which allows the problem to be reduced to a one-dimensionsl formulation with the introduction of an effective diffusion coefficient. In this study, the authors consider the analytical solution of the steady-state diffusion of a radioactive impurity in a gas filled channel of finite length with sorbing walls, with allowance for surface diffusion. The conditions under which the two-dimensional problem become one-dimensional are found.

Author keywords:

Index keywords:

Capillarity - Mathematical Models; Flow of Fluids - Channel Flow; Mass Transfer - Mathematical Models; Porous Materials - Diffusion; Radioactive Materials - Diffusion; Capillary-Porous Media; Impurity

DOI:

нет данных

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024686447&partnerID=40&md5=9b085cd4789ef11b73f23850f027f6ee

Соавторы в МНС:

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Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024686447&partnerID=40&md5=9b085cd4789ef11b73f23850f027f6ee
Affiliations	Engineering-Pedagogical Inst, Russian Federation
Correspondence Address	Ivanov, O.V.; Engineering-Pedagogical InstRussian Federation
CODEN	JEPHA
Language of Original Document	English
Abbreviated Source Title	J Eng Phys
Source	Scopus