Forming the Convective Flows and a Cluster of Particles under Spot Heating; Nanoscale and Microscale Thermophysical Engineering; Vol. 25, iss. 1

Forming the Convective Flows and a Cluster of Particles under Spot Heating; Nanoscale and Microscale Thermophysical Engineering; Vol. 25, iss. 1

Bibliographic Details
Parent link:Nanoscale and Microscale Thermophysical Engineering
Vol. 25, iss. 1.— 2021.— [P. 46-63]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Other Authors: Misyura S. Ya. Sergey Yakovlevich, Egorov R. I. Roman Igorevich, Morozov V. S. Vladimir Sergeevich, Zaitsev A. S. Aleksandr Sergeevich
Summary:Title screen
The 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.
Language:English
Published: 2021
Subjects:
электронный ресурс
труды учёных ТПУ
Benard-marangoni Convection
self-assembly
micro-particles
liquid Interface
laser heating
Online Access:https://doi.org/10.1080/15567265.2020.1860170
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664736

Similar Items

Similar Items