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J. Sib. Fed. Univ. Math. Phys., 2010, Volume 3, Issue 4, Pages 461–474 (Mi jsfu145)  

Thermocapillary motion of two viscous liquids in a cylindrical pipe

Victor K. Andreevab, Vladimir V. Kuznetsovc

a Institute of Computational Modelling, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
b Institute of Mathematics, Siberian Federal University, Krasnoyarsk, Russia
c M. A. Lavrent'ev Institute of Hydrodynamics, Novosibirsk, Russia

Abstract: A study is made of an invariant solution of the equations motion of a viscous heat-conducting fluids, which is treated as unidirectional motion in a circular pipe with a common interface under the action of the thermocapillary force. A priori estimates of the velocity and temperature are obtained. The steady state is determined and it is shown that, at larger times, this state is the limiting one. It was established that the thermocapillary effect with surface curvature can induce the return flow. Using Laplace transformation properties the exact analytical solution was constructed. Some examples of numerical reconstruction of the velocities fields depending on geometric and physical parameters were considered.

Keywords: thermocapillary, invariant solution, interface, a priori estimates, Laplace transformation.

Full text: PDF file (257 kB)
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UDC: 532.516
Received: 18.06.2010
Received in revised form: 25.08.2010
Accepted: 10.09.2010

Citation: Victor K. Andreev, Vladimir V. Kuznetsov, “Thermocapillary motion of two viscous liquids in a cylindrical pipe”, J. Sib. Fed. Univ. Math. Phys., 3:4 (2010), 461–474

Citation in format AMSBIB
\Bibitem{AndKuz10}
\by Victor~K.~Andreev, Vladimir~V.~Kuznetsov
\paper Thermocapillary motion of two viscous liquids in a~cylindrical pipe
\jour J. Sib. Fed. Univ. Math. Phys.
\yr 2010
\vol 3
\issue 4
\pages 461--474
\mathnet{http://mi.mathnet.ru/jsfu145}


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