Vícefázová hydrodynamika se zabývá studiem heterogenních soustav složených z více než jedné fáze. pod pojmem fáze zde rozumíme makroskopicky rozliššitelnou složku směsi, která je nesmísitelná se složkami ostatními., The multiphase fluid mechanics is a broad inter-disciplinary research field with the main goal of understanding the behaviour of multiphase flow systems. These are macroscopic dispersions of particles in fluids. The following systems can serve as an example: bubbles in liquids, drops in fluids, solid particles in fluids. Multiphase flows are a frequent occurrence in both natural and man-made systems and technology. This contribution presents a brief introduction into the multiphase arena, showing what is the main problem and its solution in this relatively new and challenging branch of science., Marek Růžička, Jiří Drahoš., and Obsahuje seznam literatury