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Forced Convective Heat Transfer in Boundary Layer Flow of Sisko Fluid over a Nonlinear Stretching Sheet

机译:Sisko流体在非线性拉伸片上边界层流中的强迫对流换热

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摘要

The major focus of this article is to analyze the forced convective heat transfer in a steady boundary layer flow of Sisko fluid over a nonlinear stretching sheet. Two cases are studied, namely (i) the sheet with variable temperature (PST case) and (ii) the sheet with variable heat flux (PHF case). The heat transfer aspects are investigated for both integer and non-integer values of the power-law index. The governing partial differential equations are reduced to a system of nonlinear ordinary differential equations using appropriate similarity variables and solved numerically. The numerical results are obtained by the shooting method using adaptive Runge Kutta method with Broyden’s method in the domain. The numerical results for the temperature field are found to be strongly dependent upon the power-law index, stretching parameter, wall temperature parameter, material parameter of the Sisko fluid and Prandtl number. In addition, the local Nusselt number versus wall temperature parameter is also graphed and tabulated for different values of pertaining parameters. Further, numerical results are validated by comparison with exact solutions as well as previously published results in the literature.
机译:本文的主要重点是分析在非线性拉伸板上Sisko流体稳定边界层流中的强迫对流传热。研究了两种情况,即(i)可变温度的板材(PST情况)和(ii)可变热通量的板材(PHF情况)。研究了热传递方面的幂律指数的整数和非整数值。使用适当的相似性变量,将支配的偏微分方程简化为非线性常微分方程组,并进行数值求解。数值结果是通过在域中使用自适应Runge Kutta方法和Broyden方法的射击方法获得的。发现温度场的数值结果很大程度上取决于幂律指数,拉伸参数,壁温参数,Sisko流体的材料参数和普朗特数。此外,还针对相关参数的不同值,绘制了当地的努塞尔特数与壁温参数的关系曲线并制成表格。此外,通过与精确解以及文献中先前发表的结果进行比较,可以验证数值结果。

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  • 期刊名称 other
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  • 年(卷),期 -1(9),6
  • 年度 -1
  • 页码 e100056
  • 总页数 12
  • 原文格式 PDF
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