Pr. Ezeddine SEDIKI

Thermal Radiation Research Unit, Tunis El-Manar University, Tunisia.

In a literature overview on heat transfer through gas flows at high temperature, numerous authors pointed out the modelling difficulties for solving the radiative transfer problem with its spectral nature. Complex infrared absorption and emission spectra introduce an important difficulty in the simulation when the flowing medium is a radiating molecular gas. The computational methods, based on directional, spatial and rigorous spectral discretizations still remain prohibitive in terms of computing time and storage capacity.

In view of this fact, the Lattice Boltzmann Methods is recently considered a new numerical statistical method based on the microscopic kinetic model to simulate thermal radiation. It presents some benefits over the conventional computational methods such as easy calculation procedures, high accuracy and its flexibility. Four proposed models are developed to simulate the radiative transfer equation (RTE) in gray and non-gray medium, as well as radiative and non-radiative equilibrium conditions.

Pr. Ezeddine SEDIKI : Full Professor of Physics at the Faculty of Science of Tunis since 2002, PhD (Doctorat d’Etat) from the University of Tunis El Manar, Tunisia. Visiting scholar at the Universities in France, Germany, Portugal, Belgium, USA and Canada. He authored and co‐authored several articles on Numerical Fluid Mechanics and Heat Transfer, Thermal Radiation, and Radiative Properties of Gas. His current research focus on studying Transport Phenomena by using Lattice Boltzmann Method. He was a chair of many National and International Conferences and Summer schools on Physics. He supervised more than ten PhD in Physics. He served as a Head of Thermal Radiation Laboratory and as General Director of the Doctoral School of Faculty of Tunis (2012-2016). He was also a very active member of the Tunisian Physical Society as a Vice President (2010-2014).