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LaTeX Math Block
anchordp
alignmentleft
p_{in} - p_{out} =  \frac{ \rho \cdot (1- \beta^4)}{0.125 \, \pi^2 \, d^4 \, C_d^2 \, \epsilon^2} \cdot  q^2

where

LaTeX Math Inline
body\rho

fluid  density

LaTeX Math Inline
bodyd

orifice diameter

LaTeX Math Inline
bodyD

pipe diameter 

LaTeX Math Inline
body\beta = \frac{d}{D}

choke narrowing ratio

LaTeX Math Inline
bodyC_d

LaTeX Math Inline
body\epsilon

expansion factor

See also

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Physics / Fluid Dynamics / Pipe Flow Dynamics / Pipe Flow Simulation (PFS)

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