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ЖУРНАЛЫ // Theoretical and Applied Mechanics // Архив

Theor. Appl. Mech., 2019, том 46, выпуск 2, страницы 125–145 (Mi tam66)

Эта публикация цитируется в 8 статьях

Influence of micro-rotation and micro-inertia on nanofluid flow over a heated horizontal circular cylinder with free convection

Mohammed Z. Swalmehab, Hamzeh T. Alkasasbehc, Abid Hussanande, Mustafa Mamata

a Faculty of Informatics and Computing, Universiti Sultan Zainal Abidin (Kampus Gong Badak), Kuala Terengganu, Terengganu, Malaysia
b Faculty of Arts and Sciences, Aqaba University of Technology, Aqaba, Jordan
c Department of Mathematics, Faculty of Science, Ajloun National University, Ajloun, Jordan
d Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
e Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, Vietnam

Аннотация: The addition of nanoparticles into conventional heat transfer fluids is one of the modern science techniques that offer better heat transfer performance. However, micropolar fluid model is not considered under these nanoparticles effects. Therefore, the main objective of this study is to explore the nanofluids to understand the microstructure and inertial characteristics of nanoparticles. In this paper, heat transfer flow of a micropolar nanofluid mixture containing copper (Cu) and silver (Ag) nanoparticles is investigated over a heated horizontal circular cylinder. The dimensionless governing equations are solved via an implicit finite difference scheme known as Keller-box method. The results of the nanofluid mixture are compared with those with a Newtonian fluid. The effects of different parameters on velocity, angular velocity and temperature are examined graphically for both Cu/Ag-water and Cu/Ag-kerosene oil. Results show that the heat transfer coefficient of the Cu/Ag-kerosene oil nanofluid mixture is larger than that of the Cu/Ag-water nanofluid, when comparison is based on a fixed value of the micro-rotation parameter.

Ключевые слова: microstructure, micropolar nanofluid, free convection, circular cylinder.

MSC: 76-XX, 76DXX, 76RXX, 80Axx

Поступила в редакцию: 20.11.2018
Исправленный вариант: 18.04.2019

Язык публикации: английский

DOI: 10.2298/TAM181120008S



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