ABSTRACT
Hydrodynamics of the flow of gases and liquids are an important problem in the design of technological devices, since they affect the transfer of mass and heat, the flow of chemical reactions, and physical processes. More complex is the hydrodynamics of disperse systems, which are mixtures of solid particles, liquid droplets, and gas bubbles distributed in the carrier phase. This chapter provides the basic equations of momentum transfer in liquids and disperse media in various coordinates, believing that a more detailed description can be found in the works. One of the main parameters characterizing the phenomena of heat, the mass, and an impulse is the regime of flow of liquid or gas. The flow of disperse systems in pipes is followed by sedimentation of a firm phase on the surface of pipes and the formation of a dense bed of particles whose thickness significantly influences the phenomena of transfer of weight, heat, and an impulse.
