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Law of Hagen-Poiseuille
\n\n<div id=\"hagenpouseille\">\n
This example\ \ demonstrates a simple application for fluid dynamics in a straight cylindrical\ \ pipe.
\n\n<h2 id=\"law-of-hagen-poiseuille\">Law of Hagen-Poiseuille\n\The law of Hagen-Poiseuille is a physical law that gives the pressure drop \\(\\Delta p\\) for an incompressible Newtonian fluid\
\ in the laminar regime flowing through a long cylindrical pipe of constant cross\
\ section. This geometric setup is depicted in figure fig-pouseille-setup.