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101 0 _aeng
102 _aGB
135 _adrnn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aForming the Convective Flows and a Cluster of Particles under Spot Heating
_fS. Ya. Misyura, R. I. Egorov, V. S. Morozov, A. S. Zaitsev
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 48 tit.]
330 _aThe behavior of self-organization of convective flows in a thin layer of liquid under point (local) heating is investigated experimentally. The interaction of thermocapillary and thermogravitational-free convection can lead both to self-organization of a cluster of micro-vortices in the form of hexagonal structures and to its partial disintegration. Correlation analysis of the velocity field shows that the characteristic convection scales change continuously over time. The largest size of the vortex flow corresponds to the layer diameter (20 mm); the integral convection scale (2.5 mm) characterizes the established interaction of vortex structures in a wide range of sizes; and the dimensions of hexagonal convective cells (80–100 µm) show the lower limit of the characteristic scale of vortex structures. The observed flow macrostructure is determined by the complex nonlinear interaction of vortices of the specified scales. The resulting value of the average integral convection scale can be effectively used to predict the convection velocity.
461 _tNanoscale and Microscale Thermophysical Engineering
463 _tVol. 25, iss. 1
_v[P. 46-63]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aBenard-marangoni Convection
610 1 _aself-assembly
610 1 _amicro-particles
610 1 _aliquid Interface
610 1 _alaser heating
701 1 _aMisyura
_bS. Ya.
_cspecialist in the field of power engineering
_cleading researcher of Tomsk Polytechnic University, candidate of technical sciences
_f1964-
_gSergey Yakovlevich
_2stltpush
_3(RuTPU)RU\TPU\pers\39641
701 1 _aEgorov
_bR. I.
_cspecialist in the field of heat and power engineering
_cResearcher of Tomsk Polytechnic University, candidate of physical and mathematical sciences
_f1980-
_gRoman Igorevich
_2stltpush
_3(RuTPU)RU\TPU\pers\36601
701 1 _aMorozov
_bV. S.
_gVladimir Sergeevich
701 1 _aZaitsev
_bA. S.
_cspecialist in the field of heat and power engineering
_cAssociate Professor, highly qualified worker of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences
_f1991-
_gAleksandr Sergeevich
_2stltpush
_3(RuTPU)RU\TPU\pers\36040
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа энергетики
_bНаучно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
_h8025
_2stltpush
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801 2 _aRU
_b63413507
_c20220310
_gRCR
856 4 _uhttps://doi.org/10.1080/15567265.2020.1860170
942 _cCF