Modeling of processes related to the introduction of dispersed particles into liquid metals is an important tool for optimizing production technologies and improving the quality of final products in metallurgy. This direction becomes especially relevant in the context of disperse strengthening of metals, when ultradisperse particles are introduced into a crystallizing melt to increase its strength characteristics. Nevertheless, controlling the distribution process of these particles remains a challenging task as their behavior is difficult to control directly. In this paper, a computer model is proposed to predict the distribution of particles in centrifugal casting, due to the density difference between the particles and the metal, and the calculation of the influences affecting the system. A number of simulations of distribution of ultradisperse particles of titanium carbide, tungsten and zirconium over the cross-section of billets with thickness from 20 to 40 mm are also carried out.