Research output: Contribution to journal › Conference article › peer-review
Experimental investigation and numerical modeling of destruction dynamics of thin silicone oil layers under the local heating. / Barakhovskaia, E. V.; Spesivtsev, S. E.; Kochkin, D. Y.
In: Journal of Physics: Conference Series, Vol. 1105, No. 1, 012083, 28.11.2018.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Experimental investigation and numerical modeling of destruction dynamics of thin silicone oil layers under the local heating
AU - Barakhovskaia, E. V.
AU - Spesivtsev, S. E.
AU - Kochkin, D. Y.
N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.
PY - 2018/11/28
Y1 - 2018/11/28
N2 - The processes of heat and mass transfer in systems with liquid-gas interface are of interest to a wide range of problems. Destruction dynamics of thin horizontal layers of silicone oils were investigated using confocal sensor on a 3D-positioning system. The numerical solution of the problem was obtained in the lubrication approximation theory for two-dimensional axisymmetric thermocapillary flow. The model takes into account the surface tension, viscosity, gravity and heat transfer in the substrate. The numerical algorithm for the joint solution of the energy equation and the evolution equation for the liquid layer thickness has been developed. The establishment method was used to obtain the stationary solutions. Experimental measurements and numerical calculations were made for silicone oils of different viscosities, heating power and initial thickness. The significant effect of the surface tension coefficient and its temperature coefficient on thermocapillary deformation was detected. It was experimentally established that the deformation value depends on a heat flux value. A liquid bump is formed at the boundary of the heating region that is also observed in numerically calculated profiles.
AB - The processes of heat and mass transfer in systems with liquid-gas interface are of interest to a wide range of problems. Destruction dynamics of thin horizontal layers of silicone oils were investigated using confocal sensor on a 3D-positioning system. The numerical solution of the problem was obtained in the lubrication approximation theory for two-dimensional axisymmetric thermocapillary flow. The model takes into account the surface tension, viscosity, gravity and heat transfer in the substrate. The numerical algorithm for the joint solution of the energy equation and the evolution equation for the liquid layer thickness has been developed. The establishment method was used to obtain the stationary solutions. Experimental measurements and numerical calculations were made for silicone oils of different viscosities, heating power and initial thickness. The significant effect of the surface tension coefficient and its temperature coefficient on thermocapillary deformation was detected. It was experimentally established that the deformation value depends on a heat flux value. A liquid bump is formed at the boundary of the heating region that is also observed in numerically calculated profiles.
KW - HORIZONTAL LIQUID LAYER
KW - THERMOCAPILLARY DEFORMATION
UR - http://www.scopus.com/inward/record.url?scp=85058233284&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1105/1/012083
DO - 10.1088/1742-6596/1105/1/012083
M3 - Conference article
AN - SCOPUS:85058233284
VL - 1105
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012083
T2 - 34th Siberian Thermophysical Seminar Dedicated to the 85th Anniversary of Academician A. K. Rebrov, STS 2018
Y2 - 27 August 2018 through 30 August 2018
ER -
ID: 17852782