The hydraulic jump

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The hydraulic jump

Energy equation breaks down in a turbulent hydraulic jump so can use conservation of momentum to find the conditions on either side of the jump:

( $\displaystyle {\frac{Q^{2}}{g' A_{2}}}$ + A₂(h₂ - $\displaystyle \hbar_{2}^{}$ )) - ( $\displaystyle {\frac{Q^{2}}{g' A_{1}}}$ + A₁(h₁ - $\displaystyle \hbar_{1}^{}$ )) = 0

(5)

$\begin{figure}\includegraphics[bbllx=138,bblly=337,bburx=453,bbury=605,height=5in,clip]{../figs/jump_def.ps}\end{figure}$

Variable definitions at a hydraulic jump.

$\begin{figure}\includegraphics[bbllx=70,bblly=215,bburx=520,bbury=748,height=7in,clip]{../figs/composite.eps}\end{figure}$

Hydraulic flow regimes.