Open AccessInfluence of micro-rotation and micro-inertia on nanofluid flow over a heated horizontal circular cylinder with free convection
Author(s) -
Z Mohammed Swalmeh,
Hamzeh T. Alkasasbeh,
Abid Hussanan,
Mustafa Mamat
Publication year - 2019
Publication title -
theoretical and applied mechanics/theoretical and applied mechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.279
H-Index - 6
eISSN - 2406-0925
pISSN - 1450-5584
DOI - 10.2298/tam181120008s
Subject(s) - nanofluid , materials science , kerosene , heat transfer , cylinder , mechanics , natural convection , thermodynamics , rotation (mathematics) , dimensionless quantity , copper , heat transfer coefficient , inertia , metallurgy , classical mechanics , physics , geometry , mathematics
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.