IMPROVEMENT OF THE MATHEMATICAL MODEL OF THE MOTION OF SOLID PARTICLES IN LIQUID FLOW
DOI:
https://doi.org/10.34185/1991-7848.itmm.2026.01.048Keywords:
fluid flow, suspension, movement of solid particles, two-phase medium, mass transferAbstract
The motion of solid particles in a fluid flow is a classical problem of two-phase hydrodynamics.
The paper considers the basic laws of motion of solid particles in a fluid flow. The forces acting on the particle are analyzed and a mathematical model of motion is formulated within the framework of the Euler-Euler approach. Particular attention is paid to flow regimes, the influence of turbulence and interphase interaction.
The relevance of the research topic lies in the fact that processes associated with the motion of particles underlie chemical reactors, heat exchangers, water and gas purification systems. Modeling the transport of suspended particles is necessary for predicting pollution of water bodies, assessing sediment accumulation, and analyzing the distribution of microplastics. The processes of transporting solid particles are important in the hydrotransport of coal and ore, drilling wells, and the operation of oil and gas systems. Thus, the problem under consideration has wide application in hydrodynamics, chemical technology, ecology, and energy.
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