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Open AccessArticle

Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid

1
Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
2
Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
3
Department of Mechanical Engineering, University of Windosr, Windsor, ON N9B 3P4, Canada
*
Author to whom correspondence should be addressed.
Inventions 2019, 4(4), 60; https://doi.org/10.3390/inventions4040060
Received: 27 July 2019 / Revised: 23 September 2019 / Accepted: 23 September 2019 / Published: 2 October 2019
(This article belongs to the Special Issue Recent Trends in Nanofluids)
The present numerical research studies the effect of nano-materials in a lid-driven cylindrical cavity with rotation of circumferential top wall. The heat is transferred from two lateral walls to the domain by constant temperature conditions while other walls are kept isolated. The non-dimensional equations are solved by Finite Volume Method (FVM) and SIMPLEC method. The effect of Reynolds (Re = 100, 400, 1000), Ryleigh (Ra = 104, 105, 106) numbers are studied. In addition, the effect of concentration of nano materials ( ϕ = 0%, 1%, 5%), the Height Ratio (HR = 1, 0.5, 2) on Nusselt number, isotherm lines and streamlines are studied. The results show that Reynolds number also can change the effect of nano particles on the heat transfer rate. It is observed that the height ratio increase can improve the Nusselt number since the number and the size of vortices inside the cavity changes. In addition, increase of Ra number can change the flow structure inside the cavity which can help in increasing of Nusselt number. View Full-Text
Keywords: nanofluid; mixed convection; mixer; cylindrical cavity; numerical simulation; finite volume nanofluid; mixed convection; mixer; cylindrical cavity; numerical simulation; finite volume
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MDPI and ACS Style

Niazmand, A.; Fathi Sola, J.; Alinejad, F.; Rahimi Dehgolan, F. Investigation of Mixed Convection in a Cylindrical Lid Driven Cavity Filled with Water-Cu Nanofluid. Inventions 2019, 4, 60.

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