The paper presents results of physical and numerical simulation of aerodynamics of a cyclone heating device. Calculation models of axial and radial flow motions at various outlet diameters and also cyclone flow motion trajectory have been developed in the paper. The paper considers and compares experimental and calculated distributions of tangential and axial component of full flow rate. The comparison of numerical and physical experimental results has revealed good prospects concerning usage of CFX ®10.0 programming complex for simulation of aerodynamics of cyclone heating devices and further improvement of methodologies and their aerodynamic calculation