Applied Physics and Mathematics Annotation << Back SOUND PROPAGATION IN A MAGNETIC FLUID CONTAINING ELLIPSOIDAL AGGREGATES A.D. KURILOV A model of sound propagation in a magnetized magnetic fluid containing ellipsoidal aggregates is proposed. The model quantitatively describes the geometry of aggregates formed from nanoparticles. Expressions for the attenuation coefficient and the speed of sound are obtained, taking into account the dipole-dipole interaction between aggregates. In limiting cases, the derived expressions are reduced to classical ones, and the fitting parameters are geometric characteristics of aggregates. The developed model makes it possible to determine the dimensions of aggregates and the distances between them from an experiment. The obtained results can also be used to analyze the field dependences of acoustic properties and model the kinetics of aggregate growth in a magnetic field. Keywords: magnetic fluids, attenuation coefficient, speed of sound, visco-inertial mechanism, aggregates. DOI: 10.25791/pfi m.05.2024.1311 Pp. 48-58.