THE INFLUENCE OF REYNOLDS-NUMBER ON THE ENTRY LENGTH AND PRESSURE-DROP FOR LAMINAR PIPE-FLOW

被引：52

作者：

DOMBROWSKI, N ^{[1
]}

FOUMENY, EA ^{[1
]}

OOKAWARA, S ^{[1
]}

RIZA, A ^{[1
]}

机构：

[1] UNIV LEEDS,DEPT CHEM ENGN,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1993年 / 71卷 / 03期

关键词：

BOUNDARY LAYER; ENTRY LENGTH; FINITE ELEMENTS; FINITE DIFFERENCE;

D O I：

10.1002/cjce.5450710320

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A numerical analysis of the laminar flow of a Newtonian fluid in the inlet section of a circular pipe has been carried out for a Reynolds number range of 0 to 500, employing a finite element based CFD code. A new flow phenomenon has been identified at low Reynolds numbers (< 50), viz, the existence of a peak in the axial pressure profile at a small distance from the entrance. Existing correlations for the entry length are shown to be insufficient and a new correlation for the entry length is proposed.

引用

页码：472 / 476

页数：5

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