LEROUX

FRANCE (see also List of Individuals)

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10.1.1889 Paris/F - 4.9.1933 Grenoble/F

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Paul Leroux graduated from Ecole Navale as a naval engineer. In the 1920s he joined as hydraulic engineer Beauvert Hydraulic Laboratory, Grenoble, one of the test sites of Société Hydrotechnique de France SHF from 1922. At the end of the 1920s, Leroux took over there as director and was in close relation with turbine furnishers testing hydraulic machinery. The other SHF laboratory founded in 1928 was at Saulcy close to Metz, whose director was Victor Hégly (1862-1944). Whereas the latter test site was involved in channel flows, Beauvert tested mainly hydraulic machinery and pipe flows. Leroux was the victim of a car accident.

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An early paper of Leroux was directed towards similitude in hydraulic engineering, in which he proposed the Froude law for questions in cavitation. His other 1927 paper treated diaphragms for precise discharge determination in hydraulic laboratories. For a particular orifice geometry, the effects of geometrical shape, absolute orifice dimensions, of hydraulic head, and of fluid temperature were determined. Orifices are known to be governed by scale effects due to viscosity and surface tension investigated between the two world wars. The hydraulic laboratory of Beauvert was described in 1928, during the World Engineering Congress of Tokyo in 1929, and in 1931. A review of research activities of the Beauvert Hydraulic Laboratory was presented in 1932. It is unknown who had taken over the directorship of the Beauvert hydraulic laboratory.

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_{Anonymous (1934). Paul Leroux. Bulletin Société Scientifique du Dauphiné 54: 260. Anonymous (2006). Paul Ferdinand Leroux. Mairie: Grenoble.}

_{Jouguet, E. (1927). Cavitation et similitude: Application aux machines hydrauliques semblables, d'une remarque de M. Leroux. Comptes Rendus de la Société Hydrotechnique de France 35: 341H-346H.}

_{Leroux, P. (1927). Détermination du coefficient de débit de tuyères fonctionnant en écoulement libre. Comptes Rendus de la Société Hydrotechnique de France 36: 364H-375H.}

_{Leroux, P., Bourgeat, R. (1928). Station d'étalonnage en eau courante d'appareils de mesures hydrométriques du laboratoire de la Société Hydrotechnique de France à Beauvert (Grenoble). Comptes Rendus de la Société Hydrotechnique de France 36: 387H-394H.}

_{Leroux, P., Bourgeat, R. (1929). Report on the hydraulic experiments made in the Laboratory of Société Hydrotechnique de France. Abstract 624. World Engineering Congress: Tokyo.}

_{Leroux, P. (1932). L'hydraulique générale et l'hydraulique fluviale dans les laboratoires de la Société Hydrotechnique de France. Revue Générale de l'Electricité 31(21): 701-718.}