UNSTEADY BOUNDARY LAYER FLOW OF FRACTIONAL OLDROYD-B VISCOELASTIC FLUID PAST A MOVING PLATE IN A POROUS MEDIUM

被引：0
|
作者：
Shurui Chen [1 ]
Ming Shen [1 ]
Hui Chen [2 ]
机构：
[1] College of Math.and Computer Science, Fuzhou University
[2] School of Mechanical Engineering and Automation, Fuzhou University
来源：
AnnalsofAppliedMathematics | 2017年 / 33卷 / 04期
基金：
中国国家自然科学基金;
关键词：
fractional derivative; Oldroyd-B viscoelastic fluid; porous medium; moving plate;
D O I：
暂无
中图分类号：
O357.3 [渗流];
学科分类号：
080103 ; 080704 ;
摘要：
This paper considers the unsteady boundary layer flow over a moving flat plate embedded in a porous medium with fractional Oldroyd-B viscoelastic fluid. The governing equations with mixed time-space fractional derivatives are solved numerically by using the finite difference method combined with an L1-algorithm. The effect of various physical parameters on the velocity and average skin friction are discussed and graphically illustrated in detail.Results show that the porosity € and fractional derivative α enhance the flow of Oldroyd-B viscoelastic fluid within porous medium, but fractional derivative βweakens the flow. Moreover, it is found that the average skin friction coefficient rises with the increase of fractional derivative β.
引用
收藏
页码：353 / 363
页数：11
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