Viscosity effect on the flow patterns in T-type micromixers


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Abstract

Flow patterns and mixing of liquids with different viscosities in T-type micromixers are numerically investigated on the Reynolds number range from 1 to 250. The viscosity ratio of the mixing media varied from 1 to 2; its effect on the flow structure and the mixing is studied. The dependences of the mixing efficiency and the pressure difference in the channel on the viscosity ratio and the Reynolds number are obtained. It is shown that the viscosity ratio has a considerable effect on the flow structure before and after transition from the symmetric to the asymmetric flow pattern. The self-similar behavior of the asymmetric flow pattern is established.

About the authors

A. S. Lobasov

Kutateladze Institute of Thermophysics, Siberian Branch; Siberian Federal University; The Novosibirsk State University of Architecture and Civil Engineering

Author for correspondence.
Email: perpetuityrs@mail.ru
Russian Federation, pr. Akademika Lavrent’eva 1, Novosibirsk, 630090; pr. Svobodnyi 79, Krasnoyarsk, 660041; ul. Leningradskaya 113, Novosibirsk, 630008

A. V. Minakov

Kutateladze Institute of Thermophysics, Siberian Branch; Siberian Federal University; The Novosibirsk State University of Architecture and Civil Engineering

Email: perpetuityrs@mail.ru
Russian Federation, pr. Akademika Lavrent’eva 1, Novosibirsk, 630090; pr. Svobodnyi 79, Krasnoyarsk, 660041; ul. Leningradskaya 113, Novosibirsk, 630008

V. Ya. Rudyak

The Novosibirsk State University of Architecture and Civil Engineering

Email: perpetuityrs@mail.ru
Russian Federation, ul. Leningradskaya 113, Novosibirsk, 630008

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