Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.3390/mi13091452

Ключевые слова: curved channel, flow recirculation, glycerol, microfluidics, secondary flow, viscometer, viscosity

Аннотация: This article presents a new approach to determining the viscosity of Newtonian fluid. The approach is based on the analysis of the secondary Dean flow in a curved channel. The study of the flow patterns of water and aqueous solutions of glycerin in a microfluidic chip with a U-microchannel was carried out. The advantages of a microПоказать полностьюfluidic viscometer based on a secondary Dean flow are its simplicity, quickness, and high accuracy in determining the viscosity coefficient of a liquid. A viscosity image in a short movie represents fluid properties. It is revealed that the viscosity coefficient can be determined by the dependence of the recirculation angle of the secondary Dean flow. The article provides a correlation between the Dean number and the flow recirculation angle. The results of the field experiment, presented in the article, correlate with the data obtained using computational fluid dynamics and allow for selecting parameters to create microfluidic viscometers with a U-shaped microchannel. © 2022 by the authors.

Журнал: Micromachines

Выпуск журнала: Vol. 13, Is. 9

Номера страниц: 1452

ISSN журнала: 2072666X

Издатель: MDPI

• Pryazhnikov M.I. (Laboratory of Physical and Chemical Technologies for the Development of Hard-to-Recover Hydrocarbon Reserves, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Laboratory of Heat Exchange Control in Phase and Chemical Transformations, Kutateladze Institute of Thermophysics, Novosibirsk, 630090, Russian Federation)
• Yakimov A.S. (Laboratory of Physical and Chemical Technologies for the Development of Hard-to-Recover Hydrocarbon Reserves, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
• Denisov I.A. (Laboratory of Physical and Chemical Technologies for the Development of Hard-to-Recover Hydrocarbon Reserves, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
• Pryazhnikov A.I. (Laboratory of Physical and Chemical Technologies for the Development of Hard-to-Recover Hydrocarbon Reserves, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)
• Minakov A.V. (Laboratory of Physical and Chemical Technologies for the Development of Hard-to-Recover Hydrocarbon Reserves, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Laboratory of Heat Exchange Control in Phase and Chemical Transformations, Kutateladze Institute of Thermophysics, Novosibirsk, 630090, Russian Federation)
• Belobrov P.I. (Department of Biophysics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation)

• Scopus