Flow Modes of Non-Newtonian Fluids with Power-Law Rheology in a T-Shaped Micromixer

被引：9

作者：

Lobasov, A. S. ^{[1
]}

Minakov, A. V. ^{[1
]}

Rudyak, V. Ya. ^{[2
]}

机构：

[1] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[2] Novosibirsk State Univ Architecture & Civil Engn, Novosibirsk 630008, Russia

来源：

THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2018年 / 52卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

hydrodynamics; numerical simulation; T-shaped micromixer; micromixer; mixing; rheology; non-Newtonian fluid; power-law fluid; sigma Flow CFD package; OPTIMIZATION; MIXERS;

D O I：

10.1134/S0040579518020112

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The flow and mixing modes of non-Newtonian fluids in a T-shaped micromixer were studied by numerical simulation in the range of Reynolds numbers 1-250. The non-Newtonian fluid was described using the power-law model. The exponent n was varied: 0.3, 0.5, and 0.8. The mixing efficiency and pressure drop in the channel were correlated with the exponent n and Reynolds number. The exponent n was shown to significantly affect the flow structure before and especially after the transition from symmetric to asymmetric flow modes.

引用

页码：393 / 403

页数：11

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