TY - JOUR

T1 - Modelling corners flow in rectangular microchannel

AU - Gluzdov, D. S.

AU - Gatapova, E. Ya

N1 - Publisher Copyright: © 2021 Institute of Physics Publishing. All rights reserved.

PY - 2021/12/15

Y1 - 2021/12/15

N2 - Rectangular microchannels are most common configuration in microfluidics. They can be used in many industries, for example in lab-on-chip devices. Despite standard fluid dynamics, microfluidics has a significant impact of wall boundary conditions on fluid flow. And in microfluidics, we cannot simply set no-slip boundary conditions if our goal is accurate modeling results. In rectangular microchannels, there is another important moment in modeling that is not present in circular pipes. The velocity profile of the fluid depends on the shear stress at the edges and the velocities at the walls of the microchannel change at different points of the cross-sectional wall of the microchannel. The fluid velocity is lower at the corners of a rectangular microchannel. In this paper, a solution is proposed to find a more accurate way to model the fluid flow in a rectangular microchannel by knowing the friction factor without shear stress distribution.

AB - Rectangular microchannels are most common configuration in microfluidics. They can be used in many industries, for example in lab-on-chip devices. Despite standard fluid dynamics, microfluidics has a significant impact of wall boundary conditions on fluid flow. And in microfluidics, we cannot simply set no-slip boundary conditions if our goal is accurate modeling results. In rectangular microchannels, there is another important moment in modeling that is not present in circular pipes. The velocity profile of the fluid depends on the shear stress at the edges and the velocities at the walls of the microchannel change at different points of the cross-sectional wall of the microchannel. The fluid velocity is lower at the corners of a rectangular microchannel. In this paper, a solution is proposed to find a more accurate way to model the fluid flow in a rectangular microchannel by knowing the friction factor without shear stress distribution.

UR - http://www.scopus.com/inward/record.url?scp=85123579377&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/2119/1/012114

DO - 10.1088/1742-6596/2119/1/012114

M3 - Conference article

AN - SCOPUS:85123579377

VL - 2119

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012114

T2 - 37th Siberian Thermophysical Seminar, STS 2021

Y2 - 14 September 2021 through 16 September 2021

ER -