6533b838fe1ef96bd12a4e1a

RESEARCH PRODUCT

Etude numérique de la convection forcée turbulente dans un dissipateur thermique composé de plusieurs rangées d'ailettes de différentes formes

Rachid Bouchenafa

subject

Volumes finis[SPI.OTHER]Engineering Sciences [physics]/OtherFins[PHYS.MECA.THER] Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph][SPI.OTHER] Engineering Sciences [physics]/OtherAilettesÉcoulement turbulentHeat sinkTurbulent flowDissipateur thermique[PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph]Convection forcéeForced convectionFinite volume

description

In this thesis, we present an numerical study of turbulent forced convection in a heat sink provided with a transverse baffle in the bypass. The first model is composed of plates fins and the second consists of adding pin fins between the plates fins. The governing equations, based on the k- SSt turbulence model, are disscredized and solved by the finite volume method and the SIMPLE algorithm. Dynamic results are presented in terms of velocity fields, profiles of the axial velocities in selected sections and pressure drop. The thermal study is presented in terms of temperature fields and the distribution of Nusselt number. A ratio between the thermal and dynamic performances is presented to evaluate the different heat sinks.

https://tel.archives-ouvertes.fr/tel-01879751/document