Asymptotic solutions for laminar dispersion in circular tubes

被引：10
|
作者：
Vrentas, JS [1 ]
Vrentas, CM [1 ]
机构：
[1] Penn State Univ, Dept Chem Engn, Fenske Lab 133, University Pk, PA 16802 USA
来源：
CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 04期
关键词：
short-time solution; laminar dispersion;
D O I：
10.1016/S0009-2509(99)00355-3
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A short-time asymptotic solution is developed for the dispersion of a passive solute in the fully developed laminar how of a Newtonian fluid through a straight circular tube. The new solution describes the axial dependence of the average concentration both near the leading and trailing edges of the concentration distribution, and it predicts the existence of a pronounced maximum near the trailing edge. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：849 / 855
页数：7
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