Drag Reduction of Non-Newtonian Fluid in a Sinusoidal Wavy-Walled Tube for Steady Flow

被引：0

作者：

Ma Zonghao ^{[1
]}

Bian Yongning ^{[1
]}

Zhang Liang ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Liaoning, Peoples R China

来源：

ISTM/2009: 8TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6 | 2009年

关键词：

Polyacrylamide; Drag reduction; Transitional flow; Shear thinning; Wavy-walled tube; TURBULENT PIPE-FLOW;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

It is very significant and necessary to increase truly drag reduction of aqueous Polyacrylamide (PAM) polymer solutions in disposing water and petroleum industry. In this study, the effect of drag reduction of the Polyacrylamide in a straight and a wavy-walled tube is investigated. Experiments were performed at 25 degrees C for solution concentrations from 50 to 400wppm. It is found that the best effect of drag reduction could be attained when the PAM is added to water in an appreciate concentration and an optimal concentration is found according to the f-Re curve. Furthermore, in the laminar flow region, the friction factor is linearly depended on Reynolds number, which is the same as the Newtonian fluid. It is also found that the transitional flow moves up as the drag reduction compared with the Newtonian fluid.

引用

页码：2246 / 2249

页数：4

共 8 条

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