Numerical study of turbulent gaseous combustion in cylindrical furnaces

Abstract

The present research work deals with the turbulent gaseous combustion in cylindrical furnaces. The turbulent diffusion gaseous combustion is studied numerically by solving the governing differential equations. Control volume based iterative finite difference technique is used for solving the differential equations. The standard two equation 'k-E' turbulence model is employed for turbulence closure. The combustion kinetics is modeled by Eddy Dissipation Combustion (EDC) model. A two step chemical reaction model is proposed in accordance with the Eddy Dissipation Combustion (EDC) model to predict the concentration of carbon monoxide. The predicted results of mixture fraction, concentration of individual species and temperature are compared with the reported experimental data and other predictions. A good agreement is obtained with the measurements except in the developing zone where steep gradients are prevalent. Parameters in combustion rate equations are adjusted to get this agreement.