PRESSURE DISTRIBUTION ON THE WALL OF THE INNER CYLINDER RECIPROCATING AXIALLY TO THE UNSTEADY FLOW OF VISCOELASTIC FLUID IN ECCENTRIC ANNULUS

被引：13
|
作者：
Wang Yan [1 ,2 ]
Cui Hai-qing [2 ]
Yang Yuan-jian [2 ]
Guo Jun-hui [2 ]
Li Nan [2 ]
机构：
[1] China Univ Petr, Dept Petr Engn, Beijing 102249, Peoples R China
[2] Daqing Petr Inst, Dept Petr Engn, Daqing 163318, Peoples R China
来源：
JOURNAL OF HYDRODYNAMICS | 2006年 / 18卷 / 05期
基金：
中国国家自然科学基金;
关键词：
viscoelastic fluid; reciprocating axially; unsteady flow; eccentric annulus; pressure distribution;
D O I：
10.1016/S1001-6058(06)60142-X
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this article, the governing equations for the unsteady flow of viscoelastic fluid in the eccentric annulus with the inner cylinder reciprocating axially and the expression of the pressure distribution on the wall of the inner cylinder of the annulus are established and derived, respectively, under the bipolar coordinate system. The equations and the expression are solved and calculated numerically using the finite difference method, respectively. The curves of the pressure distribution on the wall of the inner cylinder of the aqueous solution of Hydrolyzed Polyacrylamide (HPAM) are plotted and the influences of annular eccentricity, stroke, and stroke frequency on the pressure distribution are analyzed.
引用
收藏
页码：606 / 612
页数：7
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