In this paper, combustion process for iron particles burning in the gaseous oxidizing
medium due to radiation is investigated by three weighted residual methods (WRMs)
called Galerkin method (GM), least square method (LSM) and collocation method (CM).
The effect of thermal radiation from the external surface of burning particle and variations
of density of iron particle with temperature are considered. The solutions obtained by
WRMs techniques are compared with those of the fourth order Runge–Kutta numerical
method. Results show that LSM has the most accurate results among other WRMs. Also,
results show that by increasing the heat realized parameter (Ψ), combustion temperature
increased and it faster reaches to its constant value.
کلید واژگان :
Particle Combustion; Thermal Radiation; Temperature Variation; WRMs.
