在柱坐标系下研究由拉伸缸引起的Casson纳米流体流动与传热传质现象

许晓勤; 陈淑梅

doi:10.21656/1000-0887.370091

在柱坐标系下研究由拉伸缸引起的Casson纳米流体流动与传热传质现象

doi: 10.21656/1000-0887.370091

许晓勤^1,2,
陈淑梅²

¹福建船政交通职业学院汽车运用工程系, 福州 350007;²福州大学机械工程及自动化学院, 福州 350116

基金项目: 2012年度中央财政支持地方高校发展专项资金（闽教财[2012]788号）

详细信息

作者简介:
许晓勤（1981—），女，讲师，博士生（通讯作者. E-mail: m140210004@fzu.edu.cn);陈淑梅（1960—），女，教授，博士生导师.

中图分类号: O351.2
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- 文章访问数: 1034
- HTML全文浏览量: 161
- PDF下载量: 455
- 被引次数: 0
出版历程
- 收稿日期: 2016-03-29
- 修回日期: 2016-05-31
- 刊出日期: 2016-09-15

Heat and Mass Transfer in the Casson Nanofluid Flow Over a Stretching Cylinder in Cylindrical Coordinates

XU Xiao-qin^1,2,
CHEN Shu-mei²

¹Automobile Application Engineering Dep., Fujian Chuanzheng Communications College, Fuzhou 350007, P.R.China;²School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, P.R.China

摘要

摘要: 首次利用柱坐标研究速度滑移和对流表面边界条件下，由拉伸缸引起的稳态层流Casson纳米流体流动、传热及传质现象.采用恰当的相似变换将偏微分控制方程转化为高阶非线性耦合常微分方程，并通过打靶法进行数值求解，图示并详细分析了不同物理参数对速度、温度及浓度分布的影响.结果显示，速度受滑移参数的影响较大，温度和浓度分别受Biot数和Lewis数的影响较大；随着Casson参数的增大，速度下降而温度和浓度都增加；温度随着Brown(布朗)运动参数或热泳参数的增加而上升；浓度随着Brown运动参数的增大而减小，随着热泳参数的增大而增大，当热泳参数较大时，浓度出现了“回流”现象.
- 柱坐标 /
- Casson纳米流体 /
- 拉伸缸 /
- 边界层流动 /
- 速度滑移 /
- 对流边界条件
Abstract: For the first time the cylindrical coordinates were employed to study the heat and mass transfer in the steady laminar Casson nanofluid flow over a stretching cylinder in view of velocity slip and convective surface boundary conditions. The governing partial differential equations (PDEs) were transformed into highly nonlinear coupled ordinary differential equations (ODEs) via appropriate similarity transformations and then solved numerically with the shooting method. The effects of different physical parameters on velocity profiles, temperature and concentration distributions were presented graphically and analyzed in detail. The results show that the velocity is strongly influenced by the slip parameter, while the temperature and the concentration are sensitive to the Biot number and the Lewis number respectively. An increase in the Casson parameter will decelerate the flow but elevate the temperature and the concentration. Increasing the Brownian motion parameter or the thermophoresis parameter will raise the temperature. A larger concentration will come with a lower Brownian motion parameter or a higher thermophoresis parameter. The back flow exists in the concentration profile for relatively large values of the thermophoresis parameter.
- cylindrical coordinate /
- Casson nanofluid /
- stretching cylinder /
- boundary layer flow /
- velocity slip /
- convective boundary condition

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参考文献(37)

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在柱坐标系下研究由拉伸缸引起的Casson纳米流体流动与传热传质现象

doi: 10.21656/1000-0887.370091

作者简介:
许晓勤（1981—），女，讲师，博士生（通讯作者. E-mail: m140210004@fzu.edu.cn);陈淑梅（1960—），女，教授，博士生导师.

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Heat and Mass Transfer in the Casson Nanofluid Flow Over a Stretching Cylinder in Cylindrical Coordinates

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在柱坐标系下研究由拉伸缸引起的Casson纳米流体流动与传热传质现象

doi: 10.21656/1000-0887.370091

作者简介: 许晓勤（1981—），女，讲师，博士生（通讯作者. E-mail: m140210004@fzu.edu.cn);陈淑梅（1960—），女，教授，博士生导师.

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出版历程

Heat and Mass Transfer in the Casson Nanofluid Flow Over a Stretching Cylinder in Cylindrical Coordinates

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出版历程

目录

作者简介:
许晓勤（1981—），女，讲师，博士生（通讯作者. E-mail: m140210004@fzu.edu.cn);陈淑梅（1960—），女，教授，博士生导师.