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Pipe cross-section area (A)

Created by Arthur Aslanyan (Nafta College), last modified on Nov 03, 2019

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The area of pipe cross-section perpendicular to the pipeline axis:

Tubular pipe	$\begin{array}{l}A = 0.25 \, \pi \,d^2\end{array}$	$\begin{array}{l}d\end{array}$	pipe diameter
Elliptic pipe	$\begin{array}{l}A = 0.25 \, \pi \, d_1 \, d_2\end{array}$	$\begin{array}{l}d_1, \, d_2\end{array}$	elliptic diameters
Square pipe	$\begin{array}{l}A = d_1 \, d_2\end{array}$	$\begin{array}{l}d_1, \, d_2\end{array}$	square diameters

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