14-11-2017, 04:56 PM
Fluid mechanics is a branch of physics related to the mechanics of fluids (liquids, gases and plasmas) and the forces they exert on them. Fluid mechanics has a wide range of applications including mechanical engineering, civil engineering, chemical engineering, biomedical engineering, geophysics, astrophysics and biology. Fluid mechanics can be divided into fluid static, the study of fluid at rest; and fluid dynamics, the study of the effect of forces on fluid movement. It is a branch of continuous mechanics, a subject that models matter without using the information that it is made up of atoms; that is, it models matter from a macroscopic rather than a microscopic point of view. Fluid mechanics, especially fluid dynamics, is an active field of research with many problems that are partially or totally unresolved. Fluid mechanics can be mathematically complex, and can best be solved by numerical methods, usually using computers. A modern discipline, called computational fluid dynamics (CFD), is dedicated to this approach to solving fluid mechanics problems. The particle image velocimetry, an experimental method to visualize and analyze the flow of fluids, also takes advantage of the highly visual nature of fluid flow.