EFFECT OF THERMAL RADIATION ON HEAT TRANSFER IN AN UNSTEADY COPPER-WATER NANOFLUID FLOW OVER AN EXPONENTIALLY SHRINKING POROUS SHEET

被引:7
作者
Uddin, M. S. [1 ]
Zaib, A. [2 ]
Bhattacharyya, K. [3 ,4 ]
机构
[1] Khulna Univ, Math Discipline, Khulna 9208, Bangladesh
[2] Fed Urdu Univ Arts Sci & Technol, Dept Math Sci, Gulshan E Iqbal Karachi, Pakistan
[3] Banaras Hindu Univ, Inst Sci, Dept Math, Varanasi 221005, Uttar Pradesh, India
[4] Univ Burdwan, Dept Math, Burdwan 713104, W Bengal, India
关键词
thermal radiation; unsteady flow; heat transfer; dual non-similarity solutions; nanofluid; exponentially shrinking sheet; STAGNATION-POINT FLOW; BOUNDARY-LAYER-FLOW; MASS-TRANSFER; STRETCHING SHEET; CONVECTION; SLIP;
D O I
10.1134/S0021894417040113
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The effect of thermal radiation on an unsteady boundary layer flow and heat transfer in a copper-water nanofluid over an exponentially shrinking porous sheet is investigated. With the use of suitable transformations, the governing equations are transformed into ordinary differential equations. Dual non-similarity solutions are obtained for certain values of some parameters. Owing to the presence of thermal radiation, the heat transfer rate is greatly enhanced, and the thermal boundary layer thickness decreases.
引用
收藏
页码:670 / 678
页数:9
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