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使用有限元技术对通过三维垂直加热板流动的混合纳米流体及其传热增强进行模拟。

Simulation of hybridized nanofluids flowing and heat transfer enhancement via 3-D vertical heated plate using finite element technique.

作者信息

Hafeez Muhammad Bilal, Krawczuk Marek, Shahzad Hasan, Pasha Amjad Ali, Adil Mohammad

机构信息

Faculty of Mechanical Engineering and Ship Technology, Institute of Mechanics and Machine Design, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.

Faculty of Materials and Manufacturing, College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, China.

出版信息

Sci Rep. 2022 Jul 8;12(1):11658. doi: 10.1038/s41598-022-15560-5.

Abstract

The present study probed the creation of heat energy and concentrating into Newtonian liquids across vertical 3D-heated plates. The role of the Soret and Dufour theories in concentrating and energy formulas is discussed. The role of hybrid nanoparticles is introduced to illustrate particle efficiency in terms of solute and thermal energy. It is removed a viscous dissipation process and a changing magnetic field. The proposed approach is motivated by the need to maximize solute and thermal energy uses in biological and industrial domains. The constructed system of (partial differential equations) PDEs includes concentration, momentum, and thermal energy equations within various thermal characteristics. Transformations are used to formulate the system of (ordinary differential equations) ODEs for solution. To assess various features vs various variables, a Galerkin finite element approach is used. Motion into nanoscale components is shown to be smaller than motion into hybrid nanoparticles. Furthermore, fluctuations in heat energy and solute particle counts are seen in relation to changes in Soret, Eckert, magnetic, and Dufour numbers. The basic finding is that the generation of thermal energy for hybridized nanomaterials is much higher.

摘要

本研究探讨了跨垂直3D加热板在牛顿液体中产生热能并使其浓缩的情况。讨论了索雷特(Soret)理论和杜福尔(Dufour)理论在浓缩和能量公式中的作用。引入了混合纳米颗粒的作用,以说明溶质和热能方面的颗粒效率。去除了粘性耗散过程和变化的磁场。提出该方法的动机是需要在生物和工业领域中最大限度地利用溶质和热能。构建的偏微分方程(PDEs)系统包括各种热特性下的浓度、动量和热能方程。使用变换来构建常微分方程(ODEs)系统以求解。为了评估各种特征与各种变量的关系,采用了伽辽金有限元方法。结果表明,进入纳米级组分的运动小于进入混合纳米颗粒的运动。此外,观察到热能和溶质颗粒数的波动与索雷特数、埃克特数、磁数和杜福尔数的变化有关。基本发现是,杂交纳米材料的热能产生要高得多。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0fe9/9270358/adc6d5e9ba49/41598_2022_15560_Fig1_HTML.jpg

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