Mixed Convection From a Localized Heat Source in a Cavity With Conducting Walls: A Numerical Study

Papanicolaou, E.; Jaluria, Yogesh

doi:10.1080/10407789308913683

Cited by 79 publications

(37 citation statements)

References 14 publications

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“…Unlike Φ=0º, when the buoyancy is acting only in the y direction, as the rotational angle Φ changes, the flow field changes significantly. In opposing flow condition the shear driven flow opposes the natural convective flow, At low Richardson number (Ri<1)the forced convection is dominating, creating a single circulation at the right corner of the top moving lid [figure [10][11][12]. As the Richardson number increases (Ri>1), natural convection becomes dominating creating a large circulation at the bottom of the cavity.…”

Section: Effect Of Rotational Angle φmentioning

confidence: 99%

“…Torrance et al [9] investigated mixed convection in driven cavities as early as in 1972. Papaniclaou and Jaluria [10][11][12][13] carried out a series of numerical studies to investigate the combined forced and natural convective cooling of heat dissipating electronic components, located in rectangular enclosures, and cooled by an external through flow of air. The results indicate that flow patterns generally consists of high of low velocity re-circulating cells because of buoyancy forces induced by the heat source.…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Mixed Convection in a Lid Driven Trapezoidal Cavity

Mamun¹,

Tanim²,

Rahman³

et al. 2011

Convection and Conduction Heat Transfer

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Section: Effect Of Rotational Angle φmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Analysis of Mixed Convection in a Lid Driven Trapezoidal Cavity

Mamun¹,

Tanim²,

Rahman³

et al. 2011

Convection and Conduction Heat Transfer

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“…A numerical study on transition from a steady laminar regime to a period regime in a similar problem analyzed in Papanicolaou and Jaluria [2], which was investigated also in (Papanicolaou and Jaluria [4].…”

Section: Introductionmentioning

confidence: 99%

“…In [4], more arguments have been analyzed and compared with experimental data. They have been useful to study the variation of the heat transmission with the geometry.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Mixed Convection in Ventilated Cavities with Different Aspect Ratios

Carozza

2018

Fluids

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An unsteady numerical investigation on mixed convection in a two dimensional open ended cavity with different aspect ratios is carried out. In this investigation, uniform temperature is set to the left and the right sides of the cavity while the other surfaces are adiabatic. The simulation is performed for a wide range of Reynolds numbers (Re = 100-1000) and Richardson numbers (Ri = 0.132-6.5 × 10 2 ), and various cavity aspect ratios (L/D = 0.5-4.0) and H/D = 0.1. Governing equations are solved using a cell centered finite volume code, a SIMPLE numerical projection scheme and a 2nd order accuracy. Results are presented in the form of streamlines, isothermal lines, and velocity profiles in the channel. The conclusion is that the enhancement of heat transfer rate is generated principally by the increasing Re and the assisting configuration is thermally more efficient when compared to the opposing one.

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“…* Corresponding author Email: s.saha2@pgrad.unimelb.edu.au A literature review concerning ventilated enclosures shows that some available works have considered the problem of mixed convection in rectangular cavities. Papanicolaou and Jaluria [3][4][5][6][7] carried out a series of numerical studies in order to investigate the combined forced and natural convective cooling of heatdissipating electronic components located in a rectangular enclosure, and cooled by an external throughflow of air. Laminar mixed convection in a twodimensional enclosure heated from one sidewall and submitted to an either aiding or opposing jet was numerically studied in the work of Angirasa [8] and Raji and Hasnaoui [9,10].…”

Section: Introductionmentioning

confidence: 99%

Double Diffusive Mixed Convection Heat Transfer inside a Vented Square Cavity

Saha

Hasan

Khan

2009

Chem. Eng. Res. Bull.

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A numerical study has been carried out for laminar double-diffusive mixed convection in a twodimensional vented square cavity with discrete heat and contaminant sources applied on the bottom wall. An external air flow enters the cavity through an opening located at the bottom of the left vertical wall and exits from an opening located at the three different positions of the opposite wall. The developed mathematical model is governed by the two-dimensional continuity, momentum, energy, and concentration equations. The governing equations, written in non-dimensional form are solved by using Galerkin finite element method with triangular grid discretization system. The Reynolds number is fixed at 100 and the working fluid is considered as air. Numerical simulations are carried out for different combinations of the thermal Grashof numbers and results are presented in terms of streamlines, temperature and concentration distributions. The results indicate that the average Nusselt and Sherwood numbers on the heat and contaminant sources strongly depend on the positioning of the exit opening.

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Mixed Convection From a Localized Heat Source in a Cavity With Conducting Walls: A Numerical Study

Cited by 79 publications

References 14 publications

Analysis of Mixed Convection in a Lid Driven Trapezoidal Cavity

Analysis of Mixed Convection in a Lid Driven Trapezoidal Cavity

Numerical Study on Mixed Convection in Ventilated Cavities with Different Aspect Ratios

Double Diffusive Mixed Convection Heat Transfer inside a Vented Square Cavity

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