Numerical modelling of heat transfer in rectangular microchannels - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2004

Numerical modelling of heat transfer in rectangular microchannels

Résumé

The paper presents both three and two-dimensional numerical analysis of convective heat transfer in microchannels. The three-dimensional geometry of the microchannel heat sink followed the details of the experimental facility used during a previous research step. The heat sink consisted of a very high aspect ratio rectangular microchannel. Two channel heights, namely 1mm and 0.3mm (0.1mm), were used for 3D (2D) numerical model respectively. Water was employed as the cooling liquid. The Reynolds number ranged from 200 to 3000. In the paper, the thermal entrance effect is analyzed in terms of heat transfer efficiency. Finally, the comparison between measured and computed heat flux and temperature fields is presented. Contrary to the experimental work, the numerical analysis did not reveal any significant scale effect in heat transfer in microchannel heat sink up to the smallest size considered (0.1 mm).
Fichier principal
Vignette du fichier
NMHTR.pdf (926.76 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00204873 , version 1 (07-02-2020)

Licence

Paternité

Identifiants

Citer

Gabriel Gamrat, Michel Favre-Marinet, Dariusz Asendrych. Numerical modelling of heat transfer in rectangular microchannels. 2nd International Conference on Microchannels and Minichannels, Jun 2004, Rochester, United States. pp.205-212, ⟨10.1115/ICMM2004-2336⟩. ⟨hal-00204873⟩

Collections

UGA CNRS OSUG LEGI
133 Consultations
138 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More