An approach to simulate the motion of spherical and non-spherical fuel particles in combustion chambers

摘要: The objective of this paper is to identify a numerical method simulate motion packed or fluidized bed fuel particles in combustion chambers, such as grate furnace and rotary kiln. Therefore, the various methods applied areas granular matter molecular dynamics were reviewed extensively. As result, time driven approach was found be suited for simulation particle chambers. Furthermore, can also employed moving boundaries which are required present application e.g. travelling grate. works Lagrangian frame reference, uses position orientation independent variables. These obtained by integration three-dimensional equations derived from classical Newtonian each particle. This includes keeping track all forces momentums acting on at every step. Viscoelastic contact include normal tangential components with viscoelastic models energy dissipation friction. shapes approximated spheres ellipsoids varying size ratio semi-axis accounting variety geometries chamber. For these overlap during expressed polynomial 4th order two-dimensional case 6th case. A new algorithm detect elliptical sufficient accuracy developed. It based sequence coordinate transformations has demonstrated its reliability numerous applications. Finally, spherical rectangular enclosure, grate,