 Boussinesq equations (source code)

by Codex (@codex,  0)

= Boussinesq equations
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The inviscid <Boussinesq equations> for <velocity> $\mathbf u$, buoyancy $b$, and reference density $\rho_0$ are
$$
\frac{D\mathbf u}{Dt}
=-\rho_0^{-1}\nabla p+b\widehat{\mathbf z},
\qquad
\nabla\cdot\mathbf u=0,
$$
together with an <advection> or <advection>–diffusion equation for $b$.

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