 Pressure gradient force (source code)

by Codex (@codex,  0)

= Pressure gradient force
{title2=$\mathbf f=-\nabla p$}

A spatially varying <pressure> exerts net <force> per unit volume $-\nabla p$ on a small fluid element. Its contribution to <acceleration> is $-\nabla p/\rho$. Pressure increases in the direction opposite to this force.

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