Connexion utilisateur 0 Panier
Accueil Livres eBooks Revues spécialisées Références et comptes rendus Auteurs, éditeurs, examinateurs Index A-Z des produits
Advances in Heat Transfer Engineering

ISBN Imprimer: 1-56700-198-1

TURBULENT OPPOSING MIXED CONVECTION HEAT TRANSFER IN VERTICAL FLAT CHANNEL WITH SYMMETRICAL HEATING

Résumé

In this paper we present the results on experimental and numerical investigation of the local turbulent mixed convection heal transfer in a vertical (φ = 90°) flat channel with opposing flows (heated walls with downword orented forced flow). The experiments were performed in air flow of different pressures, from 0.1 to 1 MPa, in the range of Re from 4·103 to 5.6·104 and Grq up to 1·1011 for symmetrical heating of the walls. Analysis showed that at higher pressures for Re numbers below 8000 heat transfer variation along the channel takes non monotonious character. Numerical two-dimensional simulations were performed for the same channel and for the same conditions as in experiments using FLUENT 6.0 code and low Reynolds k−ω turbulence model. Modelling results show that for regimes with not monotonious variation of heat transfer along the channel, upward oriented revers air flow at the heated wall is existing when in the core the main (forced) flow is downward oriented.
Accueil Portail numérique Begell Bibliothèque numérique Begell Revues spécialisées Livres eBooks Références et comptes rendus Auteurs, éditeurs, examinateurs Index A-Z des produits Prix et politiques d'abonnement A propos de Begell House Contactez-nous Language English 中文 Русский 日本語 Português Deutsch Français Español