Experience of modelling of turbulent forced convection in ducts / M. Rokni

Public ISBD Accompagne Advanced concepts and techniques in thermal modelling / J. Henriette Titre : Experience of modelling of turbulent forced convection in ducts Type de document : texte imprimé Auteurs : M. Rokni, Auteur Importance : p 19-26 Langues : Anglais (eng) Catégories : MATHEMATIQUE-PHYSIQUE-CHIMIE Résumé : The need for a reliable and reasonable accurate turbulence model without convergence problem for calculating duct flows for industrial applications has become important . In this study, three different turbulence models for predicting the turbulent Reynolds stresses namely ; standard k-£ model, the non-linear k-£ model of Speziale and a full Reynolds Stress Model (RSM) are compared with each other. The advantages, disadvantages and accuracy of these models are discussed. The turbulent heat fluxes are modeled by the SED concept, the GGDH and the WET methods. The advantages of GGDH and WET compared to SED are discussed and the limitations of these models are clarified. Numéro du document : A 7482/PHY Niveau Bibliographique : 2 Bull1 (Theme principale) : PHYSIQUE Bull2 (Theme secondaire) : THERMIQUE Accompagne Advanced concepts and techniques in thermal modelling / J. Henriette Experience of modelling of turbulent forced convection in ducts [texte imprimé] / M. Rokni, Auteur . - [s.d.] . - p 19-26. Langues : Anglais (eng) Catégories : MATHEMATIQUE-PHYSIQUE-CHIMIE Résumé : The need for a reliable and reasonable accurate turbulence model without convergence problem for calculating duct flows for industrial applications has become important . In this study, three different turbulence models for predicting the turbulent Reynolds stresses namely ; standard k-£ model, the non-linear k-£ model of Speziale and a full Reynolds Stress Model (RSM) are compared with each other. The advantages, disadvantages and accuracy of these models are discussed. The turbulent heat fluxes are modeled by the SED concept, the GGDH and the WET methods. The advantages of GGDH and WET compared to SED are discussed and the limitations of these models are clarified. Numéro du document : A 7482/PHY Niveau Bibliographique : 2 Bull1 (Theme principale) : PHYSIQUE Bull2 (Theme secondaire) : THERMIQUE

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