Natural nanofluid-based cooling of a protuberant heat source in a partially-cooled enclosure

Guimarães, Paulo Mohallem; Menon, Genésio José

doi:10.1016/j.icheatmasstransfer.2013.04.005

Cited by 5 publications

(2 citation statements)

References 22 publications

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“…Many researchers were considering the problem of natural convection with a localized heat source in traditional enclosures filled with different types of nanofluids. Samples of these works were performed by Ogut, Mahmoudi and colleagues, Aminossadati and Ghasemi, Moraveji and Hejazian, and Guimaraes and Menon . A smaller number of researchers dealt with this subject in complicated enclosures.…”

Section: Introductionmentioning

confidence: 99%

“…Samples of these works were performed by Ogut, 17 Mahmoudi and colleagues, 18 Aminossadati and Ghasemi, 19 Moraveji and Hejazian, 20 and Guimaraes and Menon. 21 A smaller number of researchers dealt with this subject in complicated enclosures. This is due to the complexity of the numerical solution and the mesh generation for nonclassical geometries of these enclosures.…”

Section: Introductionmentioning

confidence: 99%

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Natural convection in a parabolic enclosure with an internal vertical heat source filled with Cu–water nanofluid

Hussein

Mustafa

2017

Heat Trans. Asian Res.

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The numerical investigation of the natural convection in concave and convex parabolic enclosures with a nanofluid consisting of water and copper nanoparticles is carried out by using the finite volume method. The upper and lower walls of the enclosures are adiabatic while the sidewalls are isothermal at a cold temperature. An internal heat source of constant length (ε = 0.2) and negligible thickness is placed at various vertical positions along the center of the enclosure. It was found that the increase in the location of the heat source leads to a drop in the water and nanofluid flow circulation in both types of enclosures. For both considered Cases I and II, the average Nusselt number increases when the Rayleigh number and solid volume fraction increase. Moreover, it was concluded that Case I with δ = 0.8 is the optimum case for heat transfer enhancement for Ra = 103 and Ra = 104. Case II with δ = 0.5 is optimum for Ra = 105. Both cases are satisfied when the nanofluid is used with ϕ = 0.2.

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Section: Introductionmentioning

confidence: 99%