The electrically conducting water-based nanofluid flow containing titanium and aluminum alloys over a rotating disk surface with nonlinear thermal radiation: A numerical analysis

IF 1.8 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Humaira Yasmin, Showkat Ahmad Lone, Ali M. Mahnashi, Waleed Hamali, Zehba Raizah, Anwar Saeed
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Abstract

A metallic alloy is a combination of two or more elements, often called a compound or a solution. Steel is largely composed of carbon, a nonmetal, but alloys are often made up of metals. In this article, the authors have explored the electrically conducting water-based viscous nanofluids flow past a rotating disk surface. The nanofluids flow is composed of titanium and aluminum alloys where water is used as a base fluid. Two important cases, namely the stretching case and the shrinking case, were investigated to analyze the flow behaviors due to the different embedding factors. The impacts of viscous Joule heating, thermophoresis, Brownian motion, activation energy, nonlinear thermal radiation, and chemical reaction are investigated here. By employing an appropriate set of variables for shifting the leading equations to dimension-free form. The mathematical model is solved numerically by incorporating the bvp4c MATLAB scheme. Current work is validated with previous studies. The outcomes showed that the radial velocity increases when the disk surface stretches and reduces when the disk surface shrinks. On the other hand, the Azimuthal velocity increases when the disk surface shrinks and reduces when disk surface stretches. Both the radial and Azimuthal velocities are the diminishing functions of the magnetic factor, whereas temperature is the growing function of magnetic factor. In addition, the temperature is more influenced by the magnetic factor in the case of nonlinear radiation. The higher magnetic factor increases skin friction. In addition, the stretching case experiences more surface drag than the shrinking case. It is found that nanofluid flow containing titanium alloy has perceived the greater impacts of the embedded factors compared to the nanofluid flow containing aluminum alloy.
含有钛和铝合金的导电水基纳米流体在旋转圆盘表面上的流动具有非线性热辐射:数值分析
金属合金是两种或两种以上元素的组合,通常称为化合物或溶液。钢主要由碳这种非金属组成,但合金通常由金属组成。在这篇文章中,作者探讨了导电水基粘性纳米流体流过旋转圆盘表面的情况。纳米流体流由钛合金和铝合金组成,以水为基液。研究了两种重要情况,即拉伸情况和收缩情况,以分析不同嵌入因素导致的流动行为。这里研究了粘性焦耳加热、热泳、布朗运动、活化能、非线性热辐射和化学反应的影响。通过采用一组适当的变量,将先导方程转换为无维度形式。数学模型采用 bvp4c MATLAB 方案进行数值求解。目前的工作与之前的研究进行了验证。结果表明,当圆盘表面拉伸时,径向速度增加;当圆盘表面收缩时,径向速度减小。另一方面,方位速度在磁盘表面收缩时增加,在磁盘表面拉伸时减小。径向速度和方位角速度都是磁因子的递减函数,而温度则是磁因子的增长函数。此外,在非线性辐射情况下,温度受磁因子的影响更大。磁因子越高,表皮摩擦越大。此外,拉伸情况下的表面阻力大于收缩情况下的表面阻力。研究发现,与含有铝合金的纳米流体流相比,含有钛合金的纳米流体流受到嵌入因子的影响更大。
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来源期刊
Open Physics
Open Physics PHYSICS, MULTIDISCIPLINARY-
CiteScore
3.20
自引率
5.30%
发文量
82
审稿时长
18 weeks
期刊介绍: Open Physics is a peer-reviewed, open access, electronic journal devoted to the publication of fundamental research results in all fields of physics. The journal provides the readers with free, instant, and permanent access to all content worldwide; and the authors with extensive promotion of published articles, long-time preservation, language-correction services, no space constraints and immediate publication. Our standard policy requires each paper to be reviewed by at least two Referees and the peer-review process is single-blind.
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