Rasool Ghulam, Xinhua Wang, Lund Liaquat Ali, Yashkun Ubaidullah, Wakif Abderrahim, Asghar Adnan
Institute of Intelligent Machinery, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China.
Department of Mechanical Engineering, Lebanese American University, Beirut, Lebanon.
Heliyon. 2023 Nov 22;9(12):e22737. doi: 10.1016/j.heliyon.2023.e22737. eCollection 2023 Dec.
Suspending particles of tiny solid in a fluid used to transport energy can enhance its thermal conductivity and heat transport properties. Our main goal of this examination is to study the radiative unsteady two-dimensional (2D) flow on a continuously diminishing, horizontal sheet. with suction for the hybrid water-based nanofluid and an aligned field of magnetic, including the combined suction, magnetic, and velocity slip conditions effect. The Tiwari & Das model of nanofluid equations is used, which takes into consideration the solid volume percentage. Equations of similarity are derived by employing the transformations of similarity, and the associated equations have been simplified numerically by employing the bvp4c method in MATLAB software for a variety of values of the nanoparticle volume fraction, the unsteadiness, and the wall mass suction in water. It is discovered that, within the given the unsteadiness parameter range, two solutions exist. Moreover, it is found that the fluid velocity slows down in 1st solution as volume fraction of copper nanoparticles rises but speeds up in the second solution at first before slowing down again. Using a temporal stability analysis, it is found that only one of the dual branches is stable over the long run, while the other is unstable.
将微小固体悬浮颗粒置于用于传输能量的流体中，可以提高其热导率和热传输特性。本次研究的主要目标是研究在连续变细的水平薄板上的辐射非稳态二维流动，该薄板对混合水基纳米流体有抽吸作用，并存在对齐的磁场，包括联合抽吸、磁场和速度滑移条件的影响。使用了纳米流体方程的蒂瓦里和达斯模型，该模型考虑了固体体积百分比。通过采用相似变换推导出相似方程，并利用MATLAB软件中的bvp4c方法，针对水的纳米颗粒体积分数、非稳态和壁面质量抽吸的各种值，对相关方程进行了数值简化。研究发现，在给定的非稳态参数范围内，存在两种解。此外，还发现，在第一种解中，随着铜纳米颗粒体积分数的增加，流体速度减慢，但在第二种解中，流体速度起初加快，然后再次减慢。通过时间稳定性分析发现，从长远来看，两个分支中只有一个是稳定的，而另一个是不稳定的。
