Henri-Émile Bazin

Henri -Emile Bazin ( born January 10 or October 20, 1829 in Nancy, † 7th or 14th February 1917 Chenôve at Dijon ) was a French engineer and well-known for his research in the field of hydraulics. ( The life data are reported differently in different sources. )

He was a student of the Ecole Nationale des Ponts et Chaussées and then assistant to Henry Darcy, whose work he continued. At first he worked in Tonnerre to Dijon, in 1854 then made ​​passable on the Canal de Bourgogne ( Burgundy Canal ), which he enlarged and for larger vessels. 1875 (or 1876) he became chief engineer of the Corps des ponts et chaussées in Dijon, 1886 Inspector General. In 1900, he retired in 1913 and member of the French Academy of Sciences.

He studied scientifically with the water runoff in open channels, velocity distributions, free water surfaces and wave experiments. In 1865 he published the report " Recherches Hydrauliques " via open channel flow, which established his fame. In addition, he developed a drainage formula. The Bazin formula returns the parameter C for the flow of Chezy formula:

(m depends on the wall roughness from, R is the hydraulic radius )

A similar formula has set up the cutter.