Fluid dynamics is the study of the movement of fluids, including their interactions as two fluids come into contact with each other. In this context, the term “fluid” refers to either liquid or gases. It is a macroscopic, statistical approach to analyzing these interactions at a large scale, viewing the fluids as a continuum of matter and generally ignoring the fact that the liquid or gas is composed of individual atoms. Fluid dynamics is one of the two main branches of fluid mechanics, with the other branch being fluid statics, the study of fluids at rest. (Perhaps not surprisingly, fluid statics may be thought of as a bit less exciting most of the time than fluid dynamics.) Key Concepts of Fluid Dynamics Every discipline involves concepts that are crucial to understanding how it operates. Here are some of the main ones that you’ll come across when trying to understand fluid dynamics. Basic Fluid Principles The fluid concepts that apply in fluid statics also come into play when studying fluid that is in motion. Pretty much the earliest concept in fluid mechanics is that of buoyancy, discovered in ancient Greece by Archimedes. As fluids flow, the density…

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