Effect of secondary flows on Taylor-Aris dispersion

被引：29

作者：

Zhao, Hui ^{[1
]}

Bau, Haim H. ^{[1
]}

机构：

[1] Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA

来源：

ANALYTICAL CHEMISTRY | 2007年 / 79卷 / 20期

关键词：

D O I：

10.1021/ac701681b

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We study theoretically the effects of secondary (transverse) flows on the Taylor-Aris dispersion of pressure-driven, open column flow in a conduit with a rectangular cross section and account for the interaction of solutes with the retentive coating on the conduit's surface. A few plausible means of inducing secondary flows (that are independent of the primary, pressure-driven, axial flow) are described. The Taylor-Aris dispersion coefficient is computed as a function of the secondary flow's pattern and intensity. By inducing secondary flows, one can significantly reduce dispersion.

引用

页码：7792 / 7798

页数：7

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