|Jean Louis Marie Poiseuille|
|Born||22 April 1797
|Died||26 December 1869
|Fields||physician and physiologist|
|Alma mater||École Polytechnique|
|Known for||Poiseuille's law|
From 1815 to 1816 he studied at the École Polytechnique in Paris. He was trained in physics and mathematics. In 1828 he earned his D.Sc. degree with a dissertation entitled Recherches sur la force du coeur aortique. He was interested in the flow of human blood in narrow tubes.
In 1838 he experimentally derived, and in 1840 and 1846 formulated and published, Poiseuille's law (now commonly known as the Hagen–Poiseuille equation, crediting Gotthilf Hagen as well). This concerns the voluminal laminar stationary[disambiguation needed ] flow of an incompressible uniform viscous liquid (so-called Newtonian fluid) through a cylindrical tube with constant circular cross-section. In other words, it applies to non-turbulent flow of liquids through pipes. It can be successfully applied to blood flow in capillaries and veins, to air flow in lung alveoli, for the flow through a drinking straw or through a hypodermic needle.
Poiseuille died in Paris on December 26, 1869.
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