Acceleration: Difference between revisions

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Revision as of 16:20, 26 January 2012



acceleration

The rate of change with time of the velocity vector of a particle.

If u' is the vector velocity, the acceleration may be written as Du/Dt, where D/Dt is the material (or total) derivative. For most purposes in hydrodynamics where Eulerian coordinates are employed, the acceleration is decomposed as follows:
ams2001glos-Ae5
where ∂
u/∂t is called the local acceleration, and u · ∇'u is called the convective acceleration.


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