Numerical Investigation intoVelocity and Temperature Fields Over Smooth and Rough Ducts for Several Types of Turbulators

Abstract

Numerical study on a laminar and turbulent fluid flow andtemperature distribution in a rectangular duct with six types of vortexgenerators has been carried out. A modified version of ESCEAT threedimensioncode has been used to solve Navier-Stokes and energy equations.The effect of vortex generator type, geometrical configuration, anddimensions on flow and temperature in different planes has been presented.The purpose of the present investigation is to highlight the complex threedimensionalinteraction of the vortices generated by wings and other vortexgenerators to understand how such vortices configurations structure thevelocity and temperature fields. Experiment in terms of velocities andtemperatures vectors and contours were performed on 6 configurations,which experiments are (fin, fence, rib, wing-type, rectangular-type, andwinglet-type) vortex generators The results show good agreement withpublished data.