本研究的主要目标是提出在新兴技术中增强传热的概念。为了实现这一点,将尺寸为1至100nm的微小金属和非金属颗粒引入基液中。这些纳米级颗粒用于改善液体的热性能,导致所谓的纳米流体。这些流体的利用和薄膜流动的检查在各个领域,如工程,技术,和工业。这项研究的重点是分析纳米流体的对流流动行为,具体来说,移动表面上的氧化石墨烯-乙二醇(GO-EG)和氧化石墨烯-水(GO-W)。该研究调查了磁场和变化粘度的影响。通过利用基础流体和纳米流体的热物理特性,以及在控制能量和动量的基本方程中实现相似性变换,我们制定了一个五阶非线性常微分方程(NODE)来描述速度分布。这与描述温度分布的二阶节点相结合。要解决此派生节点,我们采用一种称为同伦分析方法(HAM)的方法进行分析求解。相关因素的影响,普朗特号,包括磁场参数,液体的厚度,耦合应力参数,温度分布,动态粘度,和Eckert号码,在皮肤上摩擦,速度剖面,和Nusselt的号码通过图形表示进行询问。速度场表现出作为偶应力参数的下降,磁场参数,液体厚度,和动态粘度的经验增加。相反,随着Eckert数和动态粘度的增加,温度场显示出上升。为确保问题的衔接,采用了问题的双重解决方案,这通过利用率图和表进行了验证。由于在冷却汽车等行业的各种设备和设备的传热应用中遇到了相当大的挑战,微电子,防御,和制造业,人们强烈期望这种理论方法可以对提高传热效率做出有利的贡献。寻求这种改进以满足制造和工程部门的要求。
The main goal of this research is to present the concept of enhancing heat transfer within emerging technology. To achieve this, tiny metal and nonmetal particles ranging from 1 to 100 nm in size are introduced into base liquids. These nanoscale particles are utilized to improve the thermal performance of the liquids, leading to what are termed nanofluids. The utilization of these fluids and the examination of the flow of thin films have valuable implications across various sectors such as engineering, technology, and industries. This research focuses on analyzing the convective flow behavior of nanofluids, specifically, graphene oxide-ethylene glycol (GO-EG) and graphene oxide-water (GO-W) on a moving surface. The
study investigates the impacts of magnetic fields and varying viscosity. By making use of the thermophysical characteristics of the base fluid and the nanofluid, as well as implementing a similarity transformation within the fundamental equations that govern energy and momentum, we formulate a 5th order nonlinear ordinary differential equation (NODE) to describe the velocity profile. This is combined with a second-order NODE that describes the distribution of temperature. To solve this derived NODE, we employ a method known as the Homotopy Analysis Method (HAM) for analytical solution. The impact of the relevant factors, Prandtl number, including magnetic field parameter, thickness of the liquid, couple stress parameter, temperature distribution, dynamic viscosity, and Eckert number, on the skin friction, velocity profile, and Nusselt\'s number are interrogated through graphical representation. The velocity field exhibits a decline as the couple stress parameter, magnetic field parameter, liquid thickness, and dynamic viscosity experience an increase. Conversely, the temperature field displays a rise as the Eckert number and dynamic viscosity experience an increase. To ensure the convergence of the issue, dual solutions of the problem are employed, and this is verified through the utilization graphs and tables. Due to the considerable challenge encountered in heat transfer applications for cooling diverse equipment and devices across industries like automotive, microelectronics, defense, and manufacturing, there is a strong expectation that this theoretical methodology could make a favorable contribution towards enhancing heat transfer efficiency. This improvement is sought to meet the requirements of the manufacturing and engineering sectors.