MECHANICAL ENGINEERING
OVERVIEW
In physics, fluid dynamics is a sub-discipline of fluid mechanics 
that deals
with fluid flow—the natural science of fluids
(liquids and gases
) in motion. It has several subdisciplines itself, including aerodynamics (the study of air
and other gases in motion) and hydrodynamics (the study of liquids in motion). Fluid dynamics has a wide range of applications, including calculating forces and
moments on aircraft , determining the
mass flow rate of petroleum through pipelines,
predicting weather patterns, understanding nebulae in
interstellar space and reportedly modeling fission weapon detonation. Some of its principles are even used in
traffic engineering , where traffic is treated as a continuous fluid.[1]
“Fluid mechanics is the study of fluids either in motion (fluid dynamics) or at rest (fluid statics) and the subsequent effects of the fluid upon the boundaries, which may be either solid surfaces or interfaces with other fluids. Both gases and liquids are classified as fluids, and the number of fluids engineering applications is enormous: breathing, blood flow, swimming, pumps, fans, turbines, airplanes, ships, rivers, windmills, pipes, missiles, icebergs, engines, filters, jets, and sprinklers, to name a few. When you think about it, almost everything on this planet either is a fluid or moves within or near a fluid.[2]
