In this study, we consider the thermo-physical properties of Newtonian boundary layer fluid flow near a heated rotating disk. The viscosity is assumed to vary inversely as a linear function of temperature while thermal and concentration diffusion coefficients vary directly as linear functions of temperature and concentration. Temperature dependent viscosity and conductivity are adopted to analyze the flow phenomena. Numerical solution of the governing equations is then performed by using a fifth order Runga-Kutta Fehlberg integration scheme with a shooting method. The effect of viscosity for gases shows an increase behavior of the velocity profiles but for liquids the opposite behavior is noticed. Variable thermal conductivity and diffusivity also increase the temperature and concentration distributions. We determine the mean flow profiles and give a physical interpretation of the problem through figures and tables. Correlations in terms of temperature, concentration and viscosity are plotted graphically. Comparison has been made with available results in the literature, achieving good agreement.

在这项研究中，我们考虑了牛顿边界层流体在热旋转盘附近的热物理性质。假定粘度随温度的线性函数成反比，而热扩散系数和浓度扩散系数则随温度和浓度的线性成正比而变化。采用取决于温度的粘度和电导率来分析流动现象。然后通过使用带有射击方法的五阶Runga-Kutta Fehlberg积分方案来执行控制方程的数值解。粘度对气体的影响表明速度曲线的行为增加，但是对于液体，则注意到相反的行为。可变的热导率和扩散率也会增加温度和浓度分布。我们确定平均流量曲线，并通过图形和表格对问题进行物理解释。在温度，浓度和粘度方面的相关关系以图形方式绘制。比较了文献中的可用结果，取得了很好的一致性。