Based on the experiments on the movement of a Pt/Au bimetallic rod in a hydrogen peroxide solution, a model of the hydrodynamic mechanism of such movement is proposed. The proposed model is based on the equations of the hydrodynamics of a viscous fluid and the dynamics of particles and takes into account the hydrodynamic interaction of all charged particles in the fluid between themselves and the rod. The rod and the reaction-induced charge are modeled as a dipole aggregate; and the ions, as a cloud of small charged particles in the viscous fluid surrounding it. Numerical modeling and visualization of the calculations are carried out using a specially developed software package. The numerical calculations confirm the possibility of a dipole aggregate to move as a result of the action of the hydrodynamic force created by the formed flow of the surrounding fluid in all the considered cases of the distribution of small particles and their total charge. Qualitative agreement of the model values of the velocity and potential of the dipole with the experimental data is obtained.
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