Flow and heat transfer of an Oldroyd-B nanofluid thin film over an unsteady stretching sheet
Flow and heat transfer of an Oldroyd-B nanofluid thin film over an unsteady stretching sheet
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Oldroyd-B 纳米流体薄膜在不稳定拉伸片上的流动和传热
DOI：
10.1016/j.molliq.2016.04.108
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发表时间：
2016-08
影响因子：
6
通讯作者：
Bai Yu
中科院分区：
文献类型：
--
作者：
Zhang Yan;Zhang Min;Bai Yu
本文对不可压缩的Oldroyd-B纳米流体薄膜在拉伸片作用下的非定常边界层流动和传热进行了分析研究。以聚乙烯醇(PVA) -水作为基液，研究了两种不同类型的纳米粒子Cu和Ag。假设拉伸薄片的速度和温度沿薄片和随时间变化。首先建立了非定常边界层控制方程，然后通过相似变换将其转化为耦合的四阶非线性常微分方程。利用同伦分析方法（HAM）得到了解析解，与前人的结果吻合较好。通过图表阐述了非定常参数、Cu/Ag体积分数、普朗特数等相关参数对流场的影响。
The unsteady boundary layer flow and heat transfer of an incompressible Oldroyd-B nanofluid thin film due to a stretching sheet have been investigated analytically. Two different types of nanoparticles Cu and Ag are considered with poly vinyl alcohol (PVA)–water used as a base fluid. The velocity and temperature of the stretching sheet are assumed to vary both along the sheet and with time. The unsteady boundary layer governing equations are firstly established and then reduced to the coupled 4-order nonlinear ordinary differential equations by similarity transformation. The analytical solutions are obtained using the homotopy analysis method (HAM), and show good agreement compared with previous results. The influences of various relevant parameters such as unsteady parameter, volume fraction of Cu/Ag and Prandtl number on the flow field are elucidated through tables and graphs.
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影响因子：
2.5
作者：
Jun Niu;Zai-hong Shi;Wenchang Tan
通讯作者：
Jun Niu;Zai-hong Shi;Wenchang Tan
DOI：
10.1016/j.ijheatmasstransfer.2005.07.049
发表时间：
2006-02
影响因子：
5.2
作者：
Sujit Kumar Khan
通讯作者：
Sujit Kumar Khan
影响因子：
2.4
作者：
S. Shehzad;M. Qasim;A. Alsaedi;T. Hayat;F. Alsaadi
通讯作者：
S. Shehzad;M. Qasim;A. Alsaedi;T. Hayat;F. Alsaadi
影响因子：
2.7
作者：
Kumari, M.;Nath, G.
通讯作者：
Nath, G.
影响因子：
0.7
作者：
T. Hayat;Shafqat Ali;M. Awais;S. Obaidat
通讯作者：
T. Hayat;Shafqat Ali;M. Awais;S. Obaidat