Journal of Siberian Federal University. Mathematics & Physics / Research of the Equations of a Viscous Inhomogeneous Fluid in a Hele-Shaw Cell by Group Analysis Method

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2024 17 (4)
Authors
Rodionov, Alexander A.; Saveliev, Nikita A.
Contact information
Rodionov, Alexander A.: Siberian Federal University Krasnoyarsk, Russian Federation; ; Saveliev, Nikita A.: Siberian Federal University Krasnoyarsk, Russian Federation;
Keywords
group analysis; fluid equations; infinitesimal operator; invariant; invariant solution; Hele–Shaw cell
Abstract

In this paper, we have constructed the main group of transformations allowed by the system of differential equations for the flow of a viscous inhomogeneous fluid in a Hele–Shaw cell. A classifying equation for the viscosity function was obtained, and a basis of operators was constructed that preserved the form of the original equations. The basis of the space of solutions of the defining equations is described. Invariants of operators are found and invariant solutions of the equations are obtained

Pages
528–536
EDN
HMJRSG
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/153000