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Fluid Mechanics
Fluid mechanics
Fluid mechanics is a branch of physics that
describes the behavior of
fluids (which include
liquids and
gases).
Fluid mechanics is often considered a branch of
continuum mechanics, because fluids are often treated as continuous
material, describable with
differential equations and
tensors.
The central equations for fluid mechanics are the
Navier-Stokes equations, which are
non-linear differential equations that describe fluid flow. These equations
are derivable from
conservation of mass and
conservation of momentum.
Fluid mechanics is related to
statistical mechanics, because fluids can also be modelled as a
statistically large number of particles.
The concept of a fluid is surprisingly general. For example,
some of the basic mathematics in
traffic engineering is derived from considering traffic as a continuous
fluid.
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