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This formula calculates the area of a port with given energy dissipation rate to ensure flocs will not break up. The area of the floc port is calculated given the flow of the plant, the size of the vena contracta at the orifice, and specific energy dissipation rate.

{latex}
\large

$$
A_{Port} = {1 \over {Pi_{VenaContractaOrifice} }} * ({{K_{Exit}  * Q^3 } \over {2 * \pi _{FlocCell}  * ED_{L\arg eFloc} }})^{{2 \over 7}} 
$$
{latex}