caa a22 4500 46795156X CHVBK 20180405193742.0 cr unu---uuuuu 170328e20050101xx s 000 0 eng 10.1007/PL00022168 doi (NATIONALLICENCE)springer-10.1007/PL00022168 (NATIONALLICENCE)springer-10.1007/s11236-005-0046-z Babenko Yu Russian Scientific Center, Prikladnaya Khimiya, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut A special case of spatial averaging of the diffusion coefficient [Elektronische Daten] [Yu. Babenko] Steady-state mass transfer through a heterogeneous layer formed by coordinate planes of an orthogonal coordinate system is considered under the assumption that the boundary conditions at both layer boundaries are independent of coordinates. It is established that, if the coordinate dependence of the diffusion coefficient is described by the product of functions depending on different coordinates, then the surfaces of equal concentration (isohalines) coincide with the coordinate planes. It is shown that, in this case, the diffusion problem has an exact solution and the averaging of the diffusion coefficient is performed by elementary methods. MAIK "Nauka/Interperiodica”, 2005 Theoretical Foundations of Chemical Engineering Nauka/Interperiodica 39/1(2005-01-01), 98-102 0040-5795 39:1<98 2005 39 11236 https://doi.org/10.1007/PL00022168 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00022168 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Babenko Yu Russian Scientific Center, Prikladnaya Khimiya, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Theoretical Foundations of Chemical Engineering Nauka/Interperiodica 39/1(2005-01-01), 98-102 0040-5795 39:1<98 2005 39 11236 NATIONALLICENCE 100 1- Babenko Yu Prikladnaya Khimiya, Russian Scientific Center, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut NATIONALLICENCE 856 40 https://doi.org/10.1007/s11236-005-0046-z text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer