A general combustor prediction method is here applied to the problem of a corner-fired power station combustion chamber. The balance equations for mass, momentum, energy and the mixing of the primary and secondary streams are solved numerically. The effects of the turbulence are stimulated by the k-ε model, while the radiation transfer is handled by the flexible and economic “discrete transfer” approach. The particulate phase is treated by a Lagrangian calculation scheme which allows for particle well interactions. Result of calculations are presented for the combustor aerodynamics. where they are compared with data, for the heat transfer and temperature distributions in a gas-fired combustor and for the particle trajectories in a coal-fired unit.