A THEORETICAL VISCOSITY CORRECTION FACTOR FOR HEAT-TRANSFER AND FRICTION IN PIPE-FLOW

被引：22

作者：

FIELD, RW

机构：

[1] School of Chemical Engineering, University of Bath, Bath

来源：

CHEMICAL ENGINEERING SCIENCE | 1990年 / 45卷 / 05期

关键词：

D O I：

10.1016/0009-2509(90)87126-D

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

By coupling a consideration of heat transfer into a region of constant shear stress with a temperature-dependent viscosity, it has been shown that viscosity correction ratios of the form introduced by Sieder and Tate [namely (μb/μwn] have a theoretical justification. The index n depends upon whether μb is greater or less than μw. For heating conditions (μw < μb) n is about 0.1, whilst for cooling conditions (μw > μb) n is about 0.27. These results and the corresponding result for the effect of variable viscosity on friction factor are in agreement with experimental findings. © 1990.

引用

页码：1343 / 1347

页数：5

共 8 条

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