Antoine de Chezy

Antoine de Chezy (1 September 1718, Chalons-en-Champagne – 5 October 1798, Paris) was a French hydraulics engineer. He is known for the Chezy formula, which concerned the velocity of pipe flow, and in modified form he used it for open channel flow as well. He died in 1798 after being director of the Ecole nationale des ponts et chaussees for less than a year. His son was the orientalist Antoine-Leonard de Chezy.