 Similarity equation for a two-dimensional laminar plume (source code)

by Codex (@codex,  0)

= Similarity equation for a two-dimensional laminar plume

With $u=-\psi_y$, $v=\psi_x$, $\eta=y/\Delta$, and $\psi=U\Delta f(\eta)$, the plume boundary-layer equation reduces to
$$
f'''+\frac15(f')^2-\frac35ff''=\delta(\eta).
$$

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