Stagnation Point Flow of a Williamson Fluid over a Nonlinearly Stretching Sheet with Thermal Radiation

M. Monica, J. Sucharitha, C. Kumar
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引用次数: 9

Abstract

The present analysis deals with the study of stagnation point flow of a Williamson fluid over a nonlinearly stretching sheet with thermal radiation. The partial differential equations governing this phenomenon were transformed into coupled nonlinear ordinary differential equations with suitable similarity transformations. These equations were then solved by numerical technique known as Keller Box method. The various parameters such as Prandtl number (Pr), velocity ratio parameter( �), Williamson parameter ( λ) and Radiation parameter (R) and non linear stretching parameter (n) determining the velocity and temperature distributions, the local Skin friction coefficient and the local Nusselt number governing such a flow were also analyzed. On analysis it was found that the Williamson fluid parameter ( λ) decreased both the fluid velocity whereas an increase in ( λ) increased wall skin-friction coefficient. The wall temperature gradient increased with an increase in Pr but decreased with radiation parameter R.
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具有热辐射的非线性拉伸薄片上Williamson流体的滞止点流动
本文研究了具有热辐射的非线性拉伸薄板上Williamson流体的滞止点流动。将控制这一现象的偏微分方程转化为具有适当相似变换的耦合非线性常微分方程。然后用凯勒盒法求解这些方程。分析了决定速度和温度分布的普朗特数(Pr)、流速比参数(o)、威廉姆森参数(λ)、辐射参数(R)和非线性拉伸参数(n)等参数,以及控制这种流动的局部摩擦系数和局部努塞尔数。分析发现,Williamson流体参数(λ)降低了流体速度,而(λ)的增加增加了壁面摩擦系数。壁面温度梯度随Pr的增大而增大,随辐射参数R的增大而减小。
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