Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.3390/mi5040886

Ключевые слова: micromixers, microflow, mixing, CFD, micro-particle image velocimetry (micro-PIV), droplets, volume of fluid (VOF), Computational fluid dynamics, Drops, Drug delivery, Electromechanical devices, Hydrophobicity, MEMS, Mixers (machinery), Reynolds number, Stochastic systems, Velocity measurement, Chemical and biologicals, Micro PIV, Micro-flow, Micro-system technologies, Modeling and optimization, Moderate Reynolds numbers, Volume of fluids, Vortex flow

Аннотация: A trend in the global technological progress in the last few decades is the development of microsystem technology, microelectromechanical systems and corresponding technologies. Fluid mixing is an extremely important process widely used in various microfluidic devices (chemical microreactors, chemical and biological analyzers, drug delivery systems, etc.). To increase the mixing rate, it is necessary to use special devices: micromixers. This paper presents the results of a hydrodynamic simulation of Y-shaped micromixers. Flows are analyzed for both low and moderate Reynolds numbers. The passive and active mixers are considered. The dependence of the mixing efficiency on the Reynolds and Peclet numbers, as well as the possibility of using the hydrophobic and ultra-hydrophobic coatings is analyzed. Five different flow regimes were identified: (1) stationary vortex-free flow (Re 400). The maximum mixing efficiency was obtained for stationary asymmetric vortex flow.

Журнал: MICROMACHINES

Выпуск журнала: Vol. 5, Is. 4

Номера страниц: 886-912

ISSN журнала: 2072666X

Место издания: BASEL

Издатель: MDPI AG

• Rudyak Valery (Novosibirsk State Univ Civil Engn, Dept Theoret Mech, Novosibirsk 630008, Russia)
• Minakov Andrey (Siberian Fed Univ, Dept Thermophys, Krasnoyarsk 660074, Russia)

• Web of Science Core Collection
• Scopus
• Ядро РИНЦ (eLIBRARY.RU)