Natural convection in a cavity surface mounted with discrete heaters and subjected to different cooling configurations

Soni, Rajendra Prasad; Gavara, Madhusudhana

doi:10.1080/10407782.2016.1173429

Cited by 10 publications

(7 citation statements)

References 28 publications

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“…To illustrate the effect of covering electronic components by porous medium, steady-state free convection air cooling of two identical electronic components placed on the bottom wall of a cavity has been investigated numerically using the finite volume method. Three configurations of isothermal cooling at the walls of the cavity are tested: (1) cooling at the top wall; (2) cooling F I G U R E 16 Effect of Rayleigh number on θ Max in the case without the porous cover (comparison of our results with that of Soni and Gavara 13 ) and with the porous cover (the present work)…”

Section: Discussionmentioning

confidence: 97%

“…F I G U R E 3 Comparison of isotherms for different values of the Rayleigh number with Soni and Gavara 13 Based on these test validations, the numerical accuracy of our in-house computer code is checked to investigate the present problem.…”

Section: Y S E Ar I X Y S a H L I H U V H U V α θ K T T Qhmentioning

confidence: 99%

“…To show the effect of covering a component by a porous medium on improving the cooling process, Figure 16 presents a comparison of the maximum component temperature as a function of Ra number for the case without porous cover (Soni and Gavara 13 ) and the case with porous cover (present study) for two values of thermal conductivity ratio (Rk P = 10 and 100). This figure proves that no matter what the Rayleigh number is, the case with porous cover offers a high rate of heat transfer causing a drop in maximum temperature, especially with the increase of Rk P .…”

Section: Effect Of the Dimensionless Separation Distance Between Components (S)mentioning

confidence: 99%

“…Their results showed that at lower Rayleigh number, the heat transfer irreversibility is the dominant mode in the cavity regardless of Prandtl number values. Soni and Gavara 13 numerically analyzed the natural convection in an enclosure with two heat blocks placed on the bottom wall and subjected to three isothermal walls cooling configurations. They found that the left wall cooling offers the lowest performance despite Rayleigh number values.…”

Section: Introductionmentioning

confidence: 99%

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Natural convection cooling process from two identical porous‐covering electronic components

2021

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Section: Discussionmentioning

confidence: 97%

Section: Y S E Ar I X Y S a H L I H U V H U V α θ K T T Qhmentioning

confidence: 99%

Section: Effect Of the Dimensionless Separation Distance Between Components (S)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Natural convection cooling process from two identical porous‐covering electronic components

2021

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“…Ichimiya & Saiki (2005), Bazylak, Djilali & Sinton (2006), Cheikh, Beya & Lili (2007), Paroncini & Corvaro, (2009), Mukhopadhyay (2010), Naffouti et al. (2016), Soni & Gavara (2016), Biswas et al. (2016) just to cite some recent efforts).…”

Section: Introductionmentioning

confidence: 99%

On the role of heat source location and multiplicity in topographically controlled Marangoni–Rayleigh–Bénard convection

Lappa

Waris

2022

J. Fluid Mech.

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Periodically distributed wall-mounted hot blocks with a cubic shape located at the bottom of a layer of liquid with a free top interface tend to create patterns in their surrounding fluid that are reminiscent of the classical modes of Marangoni–Rayleigh–Bénard convection. Through direct numerical solution of the governing equations in their complete three-dimensional unsteady and nonlinear formulation, we investigate this specific subject giving much emphasis to understanding how ensemble properties arise from the interplay of localized effects. Through the used numerical framework, we identify the emerging planforms and connect the statistics of the associated heat transport mechanisms with the spatially averaged behaviour of the underlying thermal currents. In some cases, all these features can be directly mapped into the topography at the bottom of the layer. In other circumstances, these systems contain their own capacity for transformation, i.e. intrinsic evolutionary mechanisms are enabled, by which complex steady or unsteady patterns are produced. It is shown that self-organization driven by purely surface-tension or mixed buoyancy–Marangoni effects can result in ‘quantized states’, i.e. aesthetically appealing solutions that do not depend on the multiplicity of wall-mounted elements.

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Effect of Thermal Conductivity on Cooling of Square Heat Source Array under Natural Convection in a Vertical Channel

Durgam¹,

Venkateshan

Sundararajan

2019

Heat Transfer Engineering

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Natural convection in a cavity surface mounted with discrete heaters and subjected to different cooling configurations

Cited by 10 publications

References 28 publications

Natural convection cooling process from two identical porous‐covering electronic components

Natural convection cooling process from two identical porous‐covering electronic components

On the role of heat source location and multiplicity in topographically controlled Marangoni–Rayleigh–Bénard convection

Effect of Thermal Conductivity on Cooling of Square Heat Source Array under Natural Convection in a Vertical Channel

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