Numerical Simulation of Free Convection in Single- And Multiple-Zone Rectangular Cavities

Hanjalić, K.; Vasić, Slavko

doi:10.1615/ihtc9.3340

Cited by 3 publications

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“…Papanicolaou and Belessiotis [18] compare the performance of three low-Reynolds number models and report that the Launder-Sharma model [19,20], which is the Jones-Launder model with modified coefficients, is able to predict the transition at the right location on the isoflux wall of a cylindrical enclosure, in which transient natural convection is taking place at a high Rayleigh number. Hanjalic and Vasic [21] reported turbulent heat transfer computations with Launder-Sharma model for differentially heated enclosures, enclosures with different wall thermal boundary conditions and for partially-divided enclosures.…”

Section: Introductionmentioning

confidence: 99%

Turbulent mixed convection in a shallow enclosure with a series of heat generating components

Bhoite

Narasimham

2009

International Journal of Thermal Sciences

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Section: Introductionmentioning

confidence: 99%

Turbulent mixed convection in a shallow enclosure with a series of heat generating components

Bhoite

Narasimham

2009

International Journal of Thermal Sciences

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Some Further Exploration of Turbulence Models for Buoyancy Driven Flows

Hanjalić

Vasić

1993

Turbulent Shear Flows 8

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Computation of Turbulent Flow in Mixed Convection in a Cavity With a Localized Heat Source

Papanicolaou

Jaluria

1995

Journal of Heat Transfer

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A numerical simulation of the turbulent transport from an isolated heat source in a square cavity with side openings is presented in this work. The openings allow an externally induced air stream at ambient temperature to flow through the cavity and, thus, mixed convection arises. Results for the turbulent regime are obtained, by employing a suitable, high-Reynolds-number from of the K–E turbulence model. A stream function-vorticity mathematical formulation is used, along with the kinetic energy and dissipation rate equations and an expression for the eddy viscosity. A time-marching scheme is employed, using the ADI method. The values of the Reynolds number Re, associated with the external flow, and the Grashof number Gr, based on the heat flux from the source, for which turbulent flow sets in are sought. Two typical values of the Reynolds number are chosen, Re = 1000 and Re = 2000, and turbulent results are obtained in the range Gr = 5 × 107 – 5 × 108. For both values of Re, the average Nusselt number over the surface of the source is found to vary with Gr in a fashion consistent with previous numerical and experimental results for closed cavities, while the effect of Re in the chosen range of values was small.

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Numerical Simulation of Free Convection in Single- And Multiple-Zone Rectangular Cavities

Cited by 3 publications

References 0 publications

Turbulent mixed convection in a shallow enclosure with a series of heat generating components

Turbulent mixed convection in a shallow enclosure with a series of heat generating components

Some Further Exploration of Turbulence Models for Buoyancy Driven Flows

Computation of Turbulent Flow in Mixed Convection in a Cavity With a Localized Heat Source

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