Purpose

This study aims to focus on second grade fluid flow over a rotating disk in the presence of chemical reaction. Uniform magnetic field is also taken into account. Because of the smaller magnetic Reynolds number, induced magnetic field is negligible. Heat equation is constructed by considering heat source/sink.

Design/methodology/approach

Suitable variables are used to transform nonlinear partial differential equations to ordinary ones. Convergent series solutions are attained by applying homotopy analysis method.

Findings

Trends of different parameters on concentration, velocity and temperature are shown graphically. Skin friction coefficient and local Nusselt number are calculated and investigated under the effect of elaborated parameters. An elevation in the value of magnetic field parameter causes collapse in the velocity distributions. Velocity distribution in increasing function of viscoelastic parameter. Temperature and concentration profiles are decreasing functions of viscoelastic parameter. Concentration distribution reduces by increasing the chemical reaction parameter. There is more surface drag force for larger M, while opposite behavior is noted for β.

Originality/value

To the best of the authors’ knowledge, such consideration is yet to be published in the literature.

中文翻译：

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考虑旋转盘上热源/汇的二级纳米流体熵产生的理论分析

目的

本研究旨在关注在存在化学反应的情况下通过旋转圆盘的二级流体流动。均匀磁场也被考虑在内。由于较小的磁雷诺数，感应磁场可以忽略不计。热方程是通过考虑热源/汇来构建的。

设计/方法/方法

合适的变量用于将非线性偏微分方程转化为普通方程。应用同伦分析法得到收敛级数解。

发现

以图形方式显示浓度、速度和温度的不同参数的趋势。在详细参数的影响下计算和研究了皮肤摩擦系数和局部努塞尔数。磁场参数值的升高导致速度分布的崩溃。粘弹性参数递增函数中的速度分布。温度和浓度分布是粘弹性参数的递减函数。浓度分布通过增加化学反应参数而减少。较大的M有更大的表面阻力，而β则表现出相反的行为。

原创性/价值

据作者所知，这种考虑尚未在文献中发表。