Computations of post-trip reactor core thermal hydraulics using a strain parameter turbulence model

Cotton, Mark; Ismael, J O; Kirwin, P J

doi:10.1016/s0029-5493(01)00352-1

Cited by 5 publications

(2 citation statements)

References 23 publications

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“…All those authors used various forms of two-equation closure and a finding to emerge from the studies taken together was that the 'lowReynolds-number' model of Launder and Sharma [1974] was generally superior to the other variants examined. Cotton et al [2001] compared the Launder-Sharma scheme against the threeequation closure of Cotton and Ismael [1998]; the present work includes an examination of the Launder-Sharma and Cotton-Ismael models. Researchers in the field have also evaluated other strategies: for example, Richards et al [2004] and Kim et al [2006] report some success in applying the ' f v 2 − ' model of Durbin [1991] to turbulent mixed convection flows.…”

Section: 2) Review Of Previous Workmentioning

confidence: 99%

Refined Eddy Viscosity Schemes and Large Eddy Simulations for Ascending Mixed Convection Flows

Keshmiri

Addad

Cotton

et al. 2008

International Symposium on Advances in Computational Heat Transfer

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The present work is concerned with the modelling of ascending turbulent ('mixed convection') flow in a vertical heated pipe. All fluid properties are assumed to be constant and buoyancy is accounted for within the Boussinesq approximation. Four Eddy Viscosity Models (EVMs) are examined against experimental and numerical (direct simulation) data. The EVMs embody distinct physical refinements with respect to the parent high-Reynolds-number k-ε model. New Large Eddy Simulations (LES) are also presented. Three different CFD codes have been employed in the study: 'CONVERT', 'Code_Saturne', and 'STAR-CD', which are respectively inhouse, industrial, and commercial packages. In general, forced convection flows are best resolved by the LES computations and Cotton-Ismael turbulence model (Cotton and Ismael [1998]). In mixed convection flows the picture changes and the Launder-Sharma closure [Launder and Sharma, 1974] and 'Manchester f v 2 − ' model [Keshmiri et al., 2008] are in closest agreement with the direct simulation heat transfer data. Under conditions of maximum heat transfer impairment, the mean flow and turbulence profiles are best captured by the Large Eddy Simulations and LS and f v 2 − models. However, no single scheme could be said to be in excellent agreement with the data examined.

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Section: 2) Review Of Previous Workmentioning

confidence: 99%

Refined Eddy Viscosity Schemes and Large Eddy Simulations for Ascending Mixed Convection Flows

Keshmiri

Addad

Cotton

et al. 2008

International Symposium on Advances in Computational Heat Transfer

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show abstract

“…The data for the VPK series and W series are obtained from the papers of Cotton, Ismael and Kirwin [2001] and , respectively. Table 4-4 details the values of various parameters at the start of heating in these cases.…”

Section: -2-3 Comparisons Of Dsm and Rans Modelsmentioning

confidence: 99%

Advanced Computational Thermal Fluid Physics (CTFP) and Its Assessment for Light Water Reactors and Supercritical Reactors

McEligot¹,

Condie²,

McCreery³

et al. 2005

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Turbulence Models and Large Eddy Simulations Applied to Ascending Mixed Convection Flows

Keshmiri

Cotton

Addad

et al. 2012

Flow Turbulence Combust

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Computations of post-trip reactor core thermal hydraulics using a strain parameter turbulence model

Cited by 5 publications

References 23 publications

Refined Eddy Viscosity Schemes and Large Eddy Simulations for Ascending Mixed Convection Flows

Refined Eddy Viscosity Schemes and Large Eddy Simulations for Ascending Mixed Convection Flows

Advanced Computational Thermal Fluid Physics (CTFP) and Its Assessment for Light Water Reactors and Supercritical Reactors

Turbulence Models and Large Eddy Simulations Applied to Ascending Mixed Convection Flows

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