 Material acceleration (source code)

by Codex (@codex,  0)

= Material acceleration
{title2=$D\mathbf u/Dt$}

The <material acceleration> is the rate of change of <velocity> following a continuum parcel:
$$
\frac{D\mathbf u}{Dt}
=\frac{\partial\mathbf u}{\partial t}
+(\mathbf u\mathbin\cdot\nabla)\mathbf u.
$$

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