Numerical Study of the Effect of diameter intern ant extern on the Establishment of the Turbulent Regime in a Coaxial Exchanger

Abstract

This work aims to study the effect of changing diameter intern and extern on the length and temperature of the establishment of a turbulent flow in a coaxial heat exchanger with a counter current flow. The study is based on a numerical simulation using fluent software. For better illustration, this study presents a mathematical model governing a flow in the presence of a heat transfer (continuity equation, Navier-Stokes equation and energy equation)