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The Chézy Formula is a semi-empirical resistance equation [1] [2] which estimates mean flow velocity in open channel conduits. [3] The relationship was conceptualized and developed in 1768 by French physicist and engineer Antoine de Chézy (1718–1798) while designing Paris's water canal system.
The Chézy equation is a pioneering formula in the field of fluid mechanics, and was expanded and modified by Irish engineer Robert Manning in 1889 [1] as the Manning formula. The Chézy formula concerns the velocity of water flowing through conduits and is widely celebrated for its use in open channel flow calculations. [ 2 ]
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Antoine-Léonard de Chézy (1773–1832), French orientalist; Helmina von Chézy (1783–1856), German journalist, poet and playwright; Communes in France. Chézy, Allier, in the Allier department; Chézy-en-Orxois, in the Aisne department; Chézy-sur-Marne, in the Aisne department; Other. Chézy formula, for river flows
Schlieren photograph showing the thermal convection plume rising from an ordinary candle in still air. Precise mathematical theories of turbulence were not invented until the 20th century. 1902 – Martin Kutta discusses the air flow through an airfoil using the Kutta condition. 1903 – The Wright brothers carry the first successful manned ...
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He was born at Neuilly.His father, Antoine de Chézy (1718–1798), was an engineer who finally became director of the École des Ponts et Chaussées.The son was intended for his father's profession; but in 1799 he obtained a post in the oriental manuscripts department of the national library. [1]