Characterization the effects of nanofluids and heating on flow in a baffled vertical channel

The laminar 2-D blended convection of the nanofluids at different volume fractions has gained interest in the last decade due to an enormous application in technology. The laminar-flow stream system can be further modified by changing the geometry of the channel, adding an external heating source, a...

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Bibliographic Details
Published in:International journal of mechanical and materials engineering 2019-09, Vol.14 (1), p.1-15, Article 11
Main Authors: Al-Obaidi, Ali Assim, Salman, Ali J., Yousif, Ali Raheem, Al-Mamoori, Dalya H., Mussa, Mohamed H., Gaaz, Tayser Sumer, Kadhum, Abdul Amir H., Takriff, Mohd S., Al-Amiery, Ahmed A.
Format: Article
Language:English
Subjects:
Aluminum oxide
Computational fluid dynamics
Convection
Copper oxides
Engineering
Finite volume method
Fluid flow
Heat flux
Heat transmission
Heating
Initial conditions
Laminar flow
Mechanical Engineering
Nanofluids
Nanoparticles
Nusselt number
Original Paper
Parameters
Reynolds number
Silicon dioxide
Structural Materials
Theoretical and Applied Mechanics
Zinc oxide
Zinc oxides
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Summary:The laminar 2-D blended convection of the nanofluids at different volume fractions has gained interest in the last decade due to an enormous application in technology. The laminar-flow stream system can be further modified by changing the geometry of the channel, adding an external heating source, and changing the initial conditions at which the stream is being influenced. The investigation of this system includes the variation of the geometrical parameters of the channel, Reynolds number, Nusselt number, and type of the nanoparticles used in preparing the nanofluid with water as the base fluid. These parameters constitute a very successful leading to utilize the numerical solutions by using a finite volume method. Regarding heat flow, one side of the channel was supplied by the heat while the temperature of the other side was kept steadily. The upstream walls of the regressive confronting step were considered as adiabatic surfaces. The nanofluids were made by adding aluminum oxide (Al 2 O 3 ), copper oxide (CuO), silicon dioxide (SiO 2 ), or zinc oxide (ZnO) nanoparticles to various volume fractions in the scope of 1 to 4% and diverse nanoparticle diameters of 25 to 80 nm. The calculations were performed with heat flux, Reynolds numbers ( Re ), and step height ( S ) at a range of 100 
ISSN:1823-0334
2198-2791
DOI:10.1186/s40712-019-0105-6