NUMERICALSTUDYOF THE EFFECTOFDIAMETER INTERN ANT EXTERN ON THE ESTABLISHMENTOF THETURBULENTREGIMEIN ACOAXIALEXCHANGER

Abstract

Thiswork aims to study the effect ofchanging diameter intern and extern onthe lengthand temperatureof the establishment of a turbulent flowin acoaxialheat exchangerwith a counter current flow.The studyis based onanumerical simulation using fluentsoftware. For better illustration, this study presents a mathematical model governing a flowin the presence of aheat transfer(continuity equation, Navier-Stokesequationandenergy equation)