The effect of viscosity on rupture dynamics in the non-uniformly heated horizontal liquid film. / Kochkin, D. Y.; Zaitsev, D. V.; Kabov, O. A.
In: Journal of Physics: Conference Series, Vol. 1369, No. 1, 012057, 26.11.2019.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - The effect of viscosity on rupture dynamics in the non-uniformly heated horizontal liquid film
AU - Kochkin, D. Y.
AU - Zaitsev, D. V.
AU - Kabov, O. A.
PY - 2019/11/26
Y1 - 2019/11/26
N2 - In the present work, we study the rupture dynamics of a horizontal liquid film non-uniformly heated from below in a wide range of liquid viscosity. To visualize the liquid surface deformations and disruption of the film, we use a Nikon digital camera (shot at 60 fps) coupled with an optical schlieren system. In order to measure the instantaneous film thickness, we use the confocal Micro-Epsilon chromatic sensor. It was found that the process of film rupture can be divided into three stages: 1) film thinning down to a residual film on the heater; 2) existence of a stable residual film for some time; 3) rupture and dryout of the residual film. The thickness of the residual film was found to strongly depend on the liquid viscosity: For water, it is about 10 μm, whereas for PMS-200 it is about 275 μm.
AB - In the present work, we study the rupture dynamics of a horizontal liquid film non-uniformly heated from below in a wide range of liquid viscosity. To visualize the liquid surface deformations and disruption of the film, we use a Nikon digital camera (shot at 60 fps) coupled with an optical schlieren system. In order to measure the instantaneous film thickness, we use the confocal Micro-Epsilon chromatic sensor. It was found that the process of film rupture can be divided into three stages: 1) film thinning down to a residual film on the heater; 2) existence of a stable residual film for some time; 3) rupture and dryout of the residual film. The thickness of the residual film was found to strongly depend on the liquid viscosity: For water, it is about 10 μm, whereas for PMS-200 it is about 275 μm.
UR - http://www.scopus.com/inward/record.url?scp=85079357972&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1369/1/012057
DO - 10.1088/1742-6596/1369/1/012057
M3 - Conference article
AN - SCOPUS:85079357972
VL - 1369
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012057
T2 - 5th International Workshop on Heat/Mass Transfer Advances for Energy Conservation and Pollution Control, IWHT 2019
Y2 - 13 August 2019 through 16 August 2019
ER -
ID: 23576801