چكيده به لاتين
The purpose of this study is to mathematically model the non-premixed steady one directional laminar flame of metallic dust in a counterflow. For this purpose, according to the physics of the problem, two separate models based on the different reaction zones are presented by means of solving the energy and species conservation equations. At first, the reaction zone was considered to be extremely thin and the effects of oxidizer Lewis number, particle diameter and dust concentration on the combustion characteristics were investigated. Then, focusing on the reaction zone by Arrhenius reaction model, a more precise model was proposed. Also, in order to gain a better understanding of the problem, by analyzing the Lagrangian equation of forces exerted on the particle during combustion, the path of the particles through the combustion area was investigated. By comparing the results of the two proposed models with the available experimental data, it was found that the three-zone model has better correlation with the reality and the two-zone model is incapable of predicting certain parameters of the combustion of metallic dust.
