Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Reflective synthetic schlieren technique for measuring liquid surface deformations. / Mungalov, Alexander S.; Derevyannikov, Ivan A.
Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment, HMTTSC 2021. ed. / Geniy Kuznetsov; Dmitry Feoktistov; Evgeniya Orlova. American Institute of Physics Inc., 2021. 040012 (AIP Conference Proceedings; Vol. 2422).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Reflective synthetic schlieren technique for measuring liquid surface deformations
AU - Mungalov, Alexander S.
AU - Derevyannikov, Ivan A.
N1 - Funding Information: This work was supported by the Russian Science Foundation (Project No. 19-19-00695). Publisher Copyright: © 2021 Author(s).
PY - 2021/9/22
Y1 - 2021/9/22
N2 - 'Moon-Glade' Background Oriented Schlieren method for measuring liquid surface deformations was used. The method is based on the analysis of the background dots pattern images reflected from the liquid surface. The background pattern is a transparent polyester film with dots, which is located at a certain distance above the liquid. Compared to other methods that use a background image, this technique has the following advantages: (1) it allows restoring the instantaneous topography of a free surface with a sensitivity of less than 1μm; (2) it is non-intrusive and only requires the camera and the background; (3) it is also suitable for a non-isothermal liquid layer and does not require the addition of dye. The studies of the free surface deformations caused by the buoyancy effect are carried out. It is shown that the measurement by this method is limited by the radius of the curvature of the free surface, but the range of measured values can be increased by reducing the distance from the background dots pattern to the liquid.
AB - 'Moon-Glade' Background Oriented Schlieren method for measuring liquid surface deformations was used. The method is based on the analysis of the background dots pattern images reflected from the liquid surface. The background pattern is a transparent polyester film with dots, which is located at a certain distance above the liquid. Compared to other methods that use a background image, this technique has the following advantages: (1) it allows restoring the instantaneous topography of a free surface with a sensitivity of less than 1μm; (2) it is non-intrusive and only requires the camera and the background; (3) it is also suitable for a non-isothermal liquid layer and does not require the addition of dye. The studies of the free surface deformations caused by the buoyancy effect are carried out. It is shown that the measurement by this method is limited by the radius of the curvature of the free surface, but the range of measured values can be increased by reducing the distance from the background dots pattern to the liquid.
UR - http://www.scopus.com/inward/record.url?scp=85116478079&partnerID=8YFLogxK
U2 - 10.1063/5.0068194
DO - 10.1063/5.0068194
M3 - Conference contribution
AN - SCOPUS:85116478079
T3 - AIP Conference Proceedings
BT - Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment, HMTTSC 2021
A2 - Kuznetsov, Geniy
A2 - Feoktistov, Dmitry
A2 - Orlova, Evgeniya
PB - American Institute of Physics Inc.
T2 - 2021 International Youth Scientific Conference on Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment, HMTTSC 2021
Y2 - 20 April 2021 through 22 April 2021
ER -
ID: 34401464