Journal of Siberian Federal University. Mathematics & Physics / The Motion of a Binary Mixture with a Cylindrical Free Boundary at Small Marangoni Numbers

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2018 11 (2)
Authors
Andreev, Victor K.; Sobachkina, Natalya L.
Contact information
Andreev, Victor K.: Institute of Computational Modelling RAS SB Akademgorodok, 50/44, Krasnoyarsk, 660036 Institute of Mathematics and Computer Science Siberian Federal University Svobodny, 79, Krasnoyarsk, 660041 Russia; ; Sobachkina, Natalya L.: Institute of Mathematics and Computer Science Siberian Federal University Svobodny, 79, Krasnoyarsk, 660041 Russia;
Keywords
binary mixture; free boundary; stationary solution; Laplace transformation; the Marangoni number
Abstract

We studied the problem of axisymmetric motion of a binary mixture with a cylindrical free boundary at small Marangoni numbers. Using Laplace transformation properties the exact analytical solution is obtained. It is shown that a stationary solution is the limiting one with the growth of time if satisfy certain conditions imposed on the external temperature. Some examples of numerical reconstruction of the velocity, temperature and concentration fields are considered, which correspond well with the theoretical results.

Pages
194–205
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/71064