Jet impingement cooling of a horizontal surface in a confined porous medium: Mixed convection regime

Saeid, Nawaf H.; Mohamad, A. A.

doi:10.1016/j.ijheatmasstransfer.2006.03.044

Cited by 42 publications

(23 citation statements)

References 24 publications

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“…Minimum heat transfer rate is found occurring at some values of Péclet number due to the weak dispersed jet flow and interaction of buoyancy force which caused minimum flow rate through the heated surface. Another study by Wong and Saeid [9] investigated the jet impingement through porous medium under thermal non-equilibrium conditions in the mixed convection regime and shows similar trend with the study by Saeid and Mohamad [8]. Marafie et al [10] have considered partially porous channel.…”

Section: Introductionsupporting

confidence: 63%

“…Recently, several authors [8][9][10] conducted numerical studies of confined jet impingement cooling of a porous layer but in the mixed convection regime. The study by Saeid and Mohamad [8] reported that the average Nusselt number increases by either increasing the Rayleigh number, increasing the jet width when Péclet number is high, or by narrowing the distance between the jet and the heated surface.…”

Section: Introductionmentioning

confidence: 99%

“…The study by Saeid and Mohamad [8] reported that the average Nusselt number increases by either increasing the Rayleigh number, increasing the jet width when Péclet number is high, or by narrowing the distance between the jet and the heated surface. However, mixed convection may lead to minimum heat transfer rate.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal analysis of a metal foam subject to jet impingement

Wong¹

2012

International Communications in Heat and Mass Transfer

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Section: Introductionsupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

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Thermal analysis of a metal foam subject to jet impingement

Wong¹

2012

International Communications in Heat and Mass Transfer

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“…In numerous applications, however, the heating is imposed over only a portion of the walls. Some representative studies of this type including those of a single heat source (Saeid 2005;Saeid and Mohamad 2006), dual heat sources (Saeid and Pop 2005;Saeid 2006). …”

mentioning

confidence: 99%

Free convection from one thermal and solute source in a confined porous medium

2007

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This paper reports a numerical study of double diffusive natural convection in a vertical porous enclosure with localized heating and salting from one side. The physical model for the momentum conservation equation makes use of the Darcy equation, and the set of coupled equations is solved using the finite-volume methodology together with the deferred central difference scheme. An extensive series of numerical simulations is conducted in the range of −10 N +10, 0 R t 200, 10 −2 Le 200, and 0.125 L 0.875, where N, R t , Le, and L are the buoyancy ratio, Darcy-modified thermal Rayleigh number, Lewis number, and the segment location. Streamlines, heatlines, masslines, isotherms, and iso-concentrations are produced for several segment locations to illustrate the flow structure transition from solutal-dominated opposing to thermal dominated and solutal-dominated aiding flows, respectively. The segment location combining with thermal Rayleigh number and Lewis number is found to influence the buoyancy ratio at which flow transition and flow reversal occurs. The computed average Nusselt and Sherwood numbers provide guidance for locating the heating and salting segment.

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“…Generally, convection and heat transfer in porous media has been extensively investigated [1][2]. The characteristics of jet impingement cooling through porous medium are becoming important as it has attracted much attention from researchers [3][4][5][6]. It has been known that, high heat flux could induce buoyancy flow that opposing the jet flow to cause opposing mixed convection.…”

Section: Introductionmentioning

confidence: 99%