POLYMER THREADS AND DRAG REDUCTION

被引：12

作者：

HOYT, JW ^{[1
]}

SELLIN, RHJ ^{[1
]}

机构：

[1] UNIV BRISTOL,DEPT CIVIL ENGN,QUEENS BLDG,UNIV WALK,BRISTOL BS8 1TR,AVON,ENGLAND

来源：

RHEOLOGICA ACTA | 1991年 / 30卷 / 04期

关键词：

DRAG REDUCTION; POLYMER THREADS; PIPE FLOW;

D O I：

10.1007/BF00404191

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A number of different polymer fluids were ejected on the centerline of a water pipe-flow facility. Two distinct flow regions were identified: Reynolds numbers above 25 000, where centerline injection acted as a rather efficient mixing device for water-soluble polymer - and no drag-reduction resulted from non water-soluble materials; and Reynolds numbers from 10 000 to 25 000, where strong evidence exists that under certain conditions, a viscoelastic fluid thread can interact with turbulence eddies and reduce the overall flow friction in the pipe.

引用

页码：307 / 315

页数：9

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