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JOURNALS // Journal of Siberian Federal University. Mathematics & Physics // Archive

J. Sib. Fed. Univ. Math. Phys., 2023 Volume 16, Issue 5, Pages 562–571 (Mi jsfu1103)

Drift of a free-floating body in a convective layer heated by radiation

Andrei Yu. Vasiliev, Elena N. Popova, Peter G. Frick, Andrei N. Sukhanovskii

Institute of Continuous Media Mechanics, Perm, Russian Federation

Abstract: The one-dimensional dynamics of a disk floating freely at a fixed depth in a layer of liquid under conditions of natural convection caused by radiation heating was studied experimentally. It was shown that the dynamics of the disk depends on its optical properties. A disk with a light-reflecting surface demonstrated quasi-periodic motions along the cell. The period of oscillations depends on both the length of the cell and the immersion depth of the disk. The light-absorbing or transparent disk is pressed against the side wall after brief wanderings and remains there until the end of the experiment.

Keywords: turbulent convection, floating bodies, radiation heating.

UDC: 532.517.4:536.25:532.3:536.331

Received: 31.05.2023
Received in revised form: 29.06.2023
Accepted: 04.08.2023

Language: English



© Steklov Math. Inst. of RAS, 2024