Thermal boundary layer thickness estimation

by weak power laser use

 

H. Makroum1, K. Oulad Bessam2, A. Daanoun2, K. Nassim3, S. Rachafi2*

1Equipe des Transferts Thermiques et Energétique, Université UAE, 90000, FST-Tanger, Tanger, Maroc

2Equipe de Recherche en Physique Appliquée, Université UAE, 90000, FST-Tanger, Tanger, Maroc

3Laboratoire de Photonique et Métrologie Optique, Université UCD, 20000, FS-El Jadida, El Jadida, Maroc

* Corresponding author. E-mail: rachafi_said@yahoo.fr

Received: 06 December 2005; revised version accepted: 27 December 2006

 

Abstract

     In this work we have presented two original techniques for the estimation of thickness of the thermal boundary layer generated by heated plate. The first approaches, very dull and arduous, are based on the phenomenological study of Navier-Stokes's equations by using Integral Method to solve heat equation. The second one, more artful, deals with the natural mirage effect and restores the thermal boundary layer thickness of the heated plate from deviations that undergoes a laser beam evolving to the vicinity of the considered heated plate.

 

Keywords:  Thermal boundary layer; Navier-Stokes; Mirage effect; Laser; Refractive index; Eikonale equation.

© 2015