{latex}
\large
$$
D_{SedLaunderOrificeEst}  = RoundNearest\left( {\sqrt {{{4Q_{SedLaunderOrifices} } \over {\pi Pi_{VenaContractaOrifice} \sqrt {2gHL_{SedLaunderOrificeEst} } }},D_{Drill} } } \right)
$$

{latex}