El-Zahar E R, Rashad A M, Saad W, Seddek L F
Department of Mathematics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia.
Department of Basic Engineering Science, Faculty of Engineering, Menoufia University, Shebin El-Kom, 32511, Egypt.
Sci Rep. 2020 Jun 26;10(1):10494. doi: 10.1038/s41598-020-66918-6.
The goal of the current analysis is to scrutinize the magneto-mixed convective flow of aqueous-based hybrid-nanofluid comprising Alumina and Copper nanoparticles across a horizontal circular cylinder with convective boundary condition. The energy equation is modelled by interpolating the non-linear radiation phenomenon with the assisting and opposing flows. The original equations describing the magneto-hybrid nanofluid motion and energy are converted into non-dimensional equations and solved numerically using a new hybrid linearization-Chebyshev spectral method (HLCSM). HLCSM is a high order spectral semi-analytical numerical method that results in an analytical solution in η-direction and thereby the solution is valid in overall the η-domain, not only at the grid points. The impacts of diverse parameters on the allied apportionment are inspected, and the fallouts are described graphically in the investigation. The physical quantities of interest containing the drag coefficient and the heat transfer rate are predestined versus fundamental parameters, and their outcomes are elucidated. It is witnessed that both drag coefficient and Nusselt number have greater magnitude for Cu-water followed by hybrid nanofluid and AlO-water. Moreover, the value of the drag coefficient declines versus the enlarged solid volume fraction. To emphasize the originality of the current analysis, the outcomes are compared with quoted works, and excellent accord is achieved in this consideration.
当前分析的目标是研究包含氧化铝和铜纳米颗粒的水基混合纳米流体在具有对流边界条件的水平圆柱体上的磁混合对流流动。通过将非线性辐射现象与辅助流和反向流进行插值来建立能量方程。描述磁混合纳米流体运动和能量的原始方程被转换为无量纲方程，并使用一种新的混合线性化-切比雪夫谱方法（HLCSM）进行数值求解。HLCSM是一种高阶谱半解析数值方法，它在η方向上产生解析解，因此该解在整个η域内有效，而不仅仅在网格点处有效。研究了各种参数对相关分配的影响，并在研究中以图形方式描述了结果。将包含阻力系数和传热率的感兴趣的物理量与基本参数进行了预定，并阐明了它们的结果。可以看出，铜-水的阻力系数和努塞尔数的量级都大于混合纳米流体和氧化铝-水。此外，阻力系数的值随着固体体积分数的增大而下降。为了强调当前分析的原创性，将结果与引用的文献进行了比较，并在这方面取得了很好的一致性。
