Microhydrodynamic Technologies Laboratory

Microhydrodynamic Technologies Laboratory

fedorets.pngHead:  Alexander A. Fedorets, Doctor of Science (Engineering),
Member of the Scientific Council of the International Centre for Heat and Mass Transfer  
SPIN-RSCI: 110912
ORCID: 0000-0001-6595-3927
ResearcherID: H-4401-2014
Scopus AuthorID: 6505879007
Google Scholar: CDerMqkAAAAJ
ResearchGate: Alexander_Fedorets
Mendeley: Alexander-Fedorets
WoS: Search
Contacts: fedorets@utmn.ru, fedorets_alex@mail.ru

Laboratory Staff:
Dombrovsky L.A., Doctor of Science (Engineering), Senior Researcher
ORCID 0000-0002-6290-019X, Scopus AuthorID 6603682233, Google Scholar, ResearchGate, Mendeley, WoSSPIN-RSCI 29294;
Gabyshev D.N., Doctor of Science (Physics), Researcher
ResearcherID AAC-5735-2019Scopus AuthorID 56653536600, Google Scholar, ResearchGate, Mendeley, WoSSPIN-RSCI 1024138, ORCID 0000-0002-9798-7213;
Medvedev D.N., Junior Researcher
Scopus AuthorID 57008846000;
Nikolaychuk P.A., Doctor of Science (Chemistry), Junior Researcher
ORCID 0000-0003-0335-3955Scopus AuthorID 55353236100ResearcherID C-4255-2014Google ScholarResearchGate; SPIN-RSCI 640009;
Nosonovsky M.I., Doctor of Science, Senior Researcher
ORCID 0000-0003-0980-3670, ResearcherID B-2228-2012, Scopus AuthorID 8531950800, Google Scholar, ResearchGate, Mendeley, WoSMathematics Genealogy Project ID 183289;
Shcherbakov D.V., Junior Researcher
Scopus AuthorID 57209637555; Mendeley.

•  University of Wisconsin-Milwaukee, Milwaukee, WI, USA;
•  Ariel University, Ariel, Israel;
•  University of Münster, Münster, Germany;
•  Joint Institute for High Temperatures, RAS, Moscow, Russia;
•  S.S. Kutateladze Institute of Thermophysics, RAS, Novosibirsk, Russia;
•  Novosibirsk State University, Novosibirsk, Russia.

Research area
The laboratory is focused on studying dissipative structures known as “Droplet clusters”. This new phenomenon was discovered by A.A. Fedorets in 2003. A droplet cluster is a two-dimensional aerosol with a number of unique characteristics. It is a monolayer of spherical microdroplets levitating in a gas medium over a locally-heated surface of water or other liquids. Strict spatial localization of the cluster provides qualitatively new opportunities for the development of precision methods for studying physical and chemical processes under experimental conditions that closely resemble the atmosphere. Technologies developed in this laboratory will make it possible to deepen our understanding of the chemical evolution of atmospheric pollution and the resulting global climate change. These technologies will also increase the efficiency of sprayed chemical and biological plant protection products. One of the primary objectives of the laboratory is to develop new methods for the abiogenic synthesis of complex organic molecules in a microdroplet reactor. Another goal of our lab is to learn more about the ability of microorganisms to live in atmospheric aerosols.

1.jpg    2.jpg
A dissipative “Droplet Cluster” structure: left — top view, right — side view.

Main publications:

Fedorets A.A. Droplet cluster: review (2017)

  1. Gabyshev D.N., Fedorets A.A. Electrically Induced Coalescence of Droplet Clusters in External Electric Fields // Journal of Electrostatics — 2021. — V. 112. — P. 103596. DOI: 10.1016/j.elstat.2021.103596
  2. Gabyshev D.N., Medvedev D.N., Misiiuk K.V. Dynamics of Droplets Ejected above an Evaporating Water Surface // Technical Physics — 2021. — V. 91. — P. 1331–1338. DOI: 10.21883/JTF.2021.09.51211.25-21
  3. Bormashenko E.,  Fedorets A.A., Dombrovsky L.A., Nosonovsky M. Survival of Virus Particles in Water Droplets: Hydrophobic Forces and Landauer’s Principle // Entropy — 2021. — V. 23. — P. 181. DOI: 10.3390/e23020181 (see preprint).
  4. Frenkel M., Fedorets A.A., Dombrovsky L.A., Nosonovsky M., Legchenkova I., Bormashenko E. Continuous Symmetry Measure vs Voronoi Entropy of Droplet Clusters // Journal of Physical Chemistry C — 2021. — V. 125. — P. 2431–2436. DOI: 10.1021/acs.jpcc.0c10384
  5. Aktaev N.E. Potential well formation over a locally heated water surface // Applied Mathematical Modelling — 2021. — V. 90. — P. 366. DOI: 10.1016/j.apm.2020.09.016
  6. Fedorets A.A., Gabyshev D.N., Marchuk I.V., Kabov O.A. Droplets Jump at the Cluster Coalescence with the Locally Heated Liquid Layer // Interfacial Phenomena and Heat Transfer — 2020. — V. 8. — P. 337–343. DOI: 10.1615/InterfacPhenomHeatTransfer.2020037059
  7. Dombrovsky L.A., Fedorets A.A., Levashov V.Yu., Kryukov A.P., Bormashenko E., Nosonovsky M. Modeling Evaporation of Water Droplets as Applied to Survival of Airborne Viruses // Atmosphere — 2020. — V. 11. — P. 965. DOI: 10.3390/atmos11090965  (see preprint).
  8. Fedorets A.A., Shcherbakov D., Dombrovsky L.A., Bormashenko E., Nosonovsky M. Impact of surfactants on the formation and properties of droplet clusters // Langmuir — 2020. — V. 36. — P. 11154. DOI: 10.1021/acs.langmuir.0c02241
  9. Gabyshev D.N., Fedorets A.A., Klemm O. Condensational Growth of Water Droplets in an External Electric Field at Different Temperatures // Aerosol Science and Technology — 2020. — V. 54. — P. 1556. DOI: 10.1080/02786826.2020.1804522 (see preprint).
  10. Dombrovsky L.A., Fedorets A.A., Levashov V.Yu., Kryukov A.P., Bormashenko E., Nosonovsky M. Stable cluster of identical water droplets formed under the infrared irradiation: Experimental study and theoretical modeling // International Journal of Heat and Mass Transfer — 2020. — V. 161. — P. 120255.  DOI: 10.1016/j.ijheatmasstransfer.2020.120255 (see preprint).
  11. Fedorets A.A., Bormashenko E., Dombrovsky L.A., Nosonovsky M. Symmetry of small clusters of levitating water droplets // Physical Chemistry Chemical Physics — 2020. — V. 22. — P. 12239–12244. DOI: 10.1039/D0CP01804J (see preprint).
  12. Fedorets A.A., Dombrovsky L.A., Gabyshev D.N., Bormashenko E., Nosonovsky M. Effect of external electric field on dynamics of levitating water droplets // International Journal of Thermal Sciences — 2020. — V. 153. — P. 106375, 9 pp. — DOI: 10.1016/j.ijthermalsci.2020.106375
  13. Bormashenko E., Fedorets A.A., Frenkel M., Dombrovsky L.A., Nosonovsky M. Clustering and self-organization in small-scale natural and artificial systems // Philosophical Transactions of the Royal Society A — 2020. — V. 378. — Article no. 20190443, 14 pp. — DOI: 10.1098/rsta.2019.0443
  14. Fedorets A.A., Frenkel M., Legchenkova I., Shcherbakov D., Dombrovsky L.A., Nosonovsky M., Bormashenko E. Self-arranged levitating droplet clusters: a reversible transition from hexagonal to chain structure // Langmuir — 2019. — V. 35 — P. 15330–15334. DOI: 10.1021/acs.langmuir.9b03135
  15. Fedorets A.A., Aktaev N.E., Gabyshev D.N., Bormashenko E., Dombrovsky L.A., Nosonovsky M. Oscillatory Motion of a Droplet Cluster // Journal of Physical Chemistry C — 2019. — V. 123. — P. 23572–23576. DOI: 10.1021/acs.jpcc.9b08194
  16. Gabyshev D.N., Fedorets A.A., Aktaev N.E., Klemm O., Andreev S.N. Acceleration of the condensational growth of water droplets in an external electric field // Journal of Aerosol Science — 2019. — V. 135. — P. 103–112. DOI: 10.1016/j.jaerosci.2019.06.002 (see preprint).
  17. Fedorets A.A., Bormashenko E., Dombrovsky L.A., Nosonovsky M. Droplet clusters: nature-inspired biological reactors and aerosols // Philosophical Transactions of the Royal Society A  — 2019. — V. 377. — Article no. 20190121, 13 pp. DOI: 10.1098/rsta.2019.0121
  18. Fedorets A.A., Dombrovsky L.A., Bormashenko E., Nosonovsky M. On relative contribution of electrostatic and aerodynamic effects to dynamics of a levitating droplet cluster // International Journal of Heat and Mass Transfer — 2019. — V. 133. — P. 712–717. DOI: 10.1016/j.ijheatmasstransfer.2018.12.160 (see preprint).
  19. Bormashenko E., Frenkel M., Vilk A., Legchenkova I., Fedorets A.A., Aktaev N.E., Dombrovsky L.A. Characterization of Self-Assembled 2D Patterns with Voronoi Entropy // Entropy — 2018. — V. 20. — P. 956–968. DOI: 10.3390/e20120956 (see preprint).
  20. Fedorets A.A., Aktaev N.E., Dombrovsky L.A. Suppression of the condensational growth of droplets of a levitating cluster using the modulation of the laser heating power // International Journal of Heat and Mass Transfer — 2018. — V. 127 A. — P. 660–664. DOI: 10.1016/j.ijheatmasstransfer.2018.07.055
  21. Aktaev N.E., Fedorets A.A., Bormashenko E., Nosonovsky M. Langevin Approach to Modeling of Small Levitating Ordered Droplet Clusters // Journal of Physical Chemistry Letters — 2018. — V. 9. — P. 3834–3838. DOI: 10.1021/acs.jpclett.8b01693
  22. Fedorets A.A., Frenkel M., Bormashenko E., Nosonovsky M. Small Levitating Ordered Droplet Clusters: Stability, Symmetry, and Voronoi Entropy // Journal of Physical Chemistry Letters — 2017. — V. 8. — P. 5599–5602. DOI: 10.1021/acs.jpclett.7b02657 (see preprint).
  23. Fedorets A.A., Frenkel M., Shulzinger E., Dombrovsky L.A, Bormashenko E., Nosonovsky M. Self-assembled levitating clusters of water droplets: Pattern-formation and stability // Scientific Reports — 2017. — V. 7. — Article no. 1888, 6 pp. DOI: 10.1038/s41598-017-02166-5
  24. Fedorets A.A., Dombrovsky L.A., Ryumin P.I. Expanding the temperature range for generation of droplet clusters over the locally heated water surface // International Journal of Heat and Mass Transfer — 2017. — V. 113. — P. 1054–1058. DOI: 10.1016/j.ijheatmasstransfer.2017.06.015
  25. Mendeleyev V.Ya., Kachalov V.V., Kurilovich A.V., Dombrovsky L.A. Abnormally strong decrease in reflectance of molten copper due to possible generation of levitating sub-micron melt droplets // International Journal of Heat and Mass Transfer — 2017. — V. 113. — P. 53–58. DOI: 10.1016/j.ijheatmasstransfer.2017.05.056
  26. Fedorets A.A., Dombrovsky L.A. Generation of levitating droplet clusters above the locally heated water surface: A thermal analysis of modified installation // International Journal of Heat and Mass Transfer – 2017. — V. 104. — P. 1268–1274. DOI: 10.1016/j.ijheatmasstransfer.2016.09.087
  27. Barakhovskaia E.V., Marchuk I.V., Fedorets A.A. Thermocapillary deformation in a locally heated layer of silicone oil // Journal of Physics: Conference Series — 2016. — V. 754. — P. 032002. DOI: 10.1088/1742-6596/754/3/032002
  28. C1 2580176 RU 7 G01F 13/00. Method of stabilizing size of microdroplets forming dissipative “Droplet Cluster” structure / Fedorets A.A. (Tyumen State University) — no. 2015110381/28; App. 23.03.2015 // Inventions. Useful models. — 2016. — Bul. no. 10. — 3 p. URL: freepatent.ru/images/img_patents/2/2580/2580176/patent-2580176.pdf
  29. Cheverda V.V., Fedorets A.A., Marchuk I.V., Kabov O.A. Thermocapillary deformation of a water layer at local heating // Thermophysics and Aeromechanics — 2016. — V. 23, No. 2. — P. 231–236. DOI: 10.1134/S0869864316020098
  30. Dombrovsky L.A., Fedorets A.A., Medvedev D.N. The use of infrared irradiation to stabilize levitating clusters of water droplets // Infrared Physics and Technology — 2016. — Vol. 75. — P. 124–132. DOI: 10.1016/j.infrared.2015.12.020
  31. Fedorets A.A., Dombrovsky L.A., Medvedev D.N. Effect of infrared irradiation on the suppression of the condensation growth of water droplets in a levitating droplet cluster // JETP Letters — 2015. — V. 102. No. 7. — P. 452–454. DOI: 10.1134/S0021364015190042
  32. Fedorets A.A., Marchuk I.V., Strizhak P.A., Kabov O.A. Capillary waves at microdroplet coalescence with a liquid layer // Thermophysics and Aeromechanics — 2015. — V. 22. No. 4. — P. 515–518. DOI: 10.1134/S0869864315040137
  33. Fedorets A.A., Dombrovsky L.A., Smirnov A.M. The use of infrared self-emission measurements to retrieve surface temperature of levitating water droplets. // Infrared Physics and Technology — 2015. — V. 69. — P. 238–243. DOI: 10.1016/j.infrared.2015.02.005

Additional links:
• Youtube: Alexander Fedorets
• Wikipedia.org: Droplet Cluster

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Current projects:
• Improving the efficiency and methods of protecting crops using surfactants and 2D aerosol technology, 2020-2022 (State Assignment of the Ministry of Education and Science of the Russian Federation No. АААА-А20-120051490005-9). Project manager N.A. Ivanova, co-manager A.A. Fedorets.
• Theoretically based methods for generating and monitoring levitating droplet clusters and biochemical experiments in microreactor droplets, 2019–2021 (grant of the Russian Science Foundation No. 19-19-00076). Project manager A.A. Fedorets.
• Oscillatory trajectories of water droplets in a vertical airstream as a proxy for falling raindrops, 2021 (within the framework of the “Michail-Lomonosov-Programm” of the German Academic Exchange Service and the Ministry of Education and Science of the Russian Federation, State Assignment). Project manager D.N. Gabyshev.
• Experimental and theoretical study of the combination of considerable micrometeorological processes associated with single water droplets and accompanying their growth and existence in the Earth's atmosphere, based on the droplet cluster technology, 2020–2021 (grant of President of Russian Federation for government support of young Sc. No. MK-819.2020.2). Project manager D.N. Gabyshev.

Completed projects:
• Experimental and theoretical study of the effect of an external electric field on the properties and motion of a two-dimensional plasma-like system — a droplet cluster, 2018–2020 (grant of the Russian Foundation for Basic Research No. 18-38-00232 mol_a). Project manager D.N. Gabyshev.
 • Experimental and theoretical study of microscale processes of heat and mass transfer in the dissipative structure “Droplet Cluster”, 2017–2019 (State Assignment of the Ministry of Education and Science of the Russian Federation No. 3.8191.2017/БЧ). Project manager A.A. Fedorets.
• Investigation of physicochemical processes in levitating water microdroplets based on 2D aerosol technology, 2018 (within the framework of the “Michail-Lomonosov-Programm” of the German Academic Exchange Service and the Ministry of Education and Science of the Russian Federation, State Assignment No. 3.12801.2018/12.2). Project manager D.N. Gabyshev.
• Experimental and theoretical study on the observed microdroplets levitation and the conditions for the formation of stable droplet clusters over the heated surface of a liquid, 2015–2017 (grant of the Russian Foundation for Basic Research No. 15-08-00248). Project manager A.A. Fedorets.

Postgraduate and postdoctoral studies opportunities
PhD programs:
Specialty: 01.04.14 — Thermal physics and theoretical heating engineering (offered in Russian, automatic translation).

Postdoc Announcements:
Project: Microhydrodynamic Technologies for Controlled 2D Aerosol Generation.

See more at the University of Tyumen Postdoctoral Fellowships.

625003, Russia, Tyumen, ul. Lenina 25, lab. 305,
tel.: +7 (3452) 59-74-00 #17162 (Head of Laboratory)
                                       #17136 (other Staff)
e-mail: fedorets@utmn.ru, fedorets_alex@mail.ru

About the laboratory (Russian version)
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