La Houille Blanche
Number 7-8, Décembre 1992
|Page(s)||637 - 642|
|Published online||01 October 2009|
Modélisation de la cavitation tridimensionnelle dans les pompes
3D modelling of cavitating flows in pumps
CREMHyG Centre de Recherche et d'Essais de Machines Hydrauliques de Grenoble INPG-ENSHMG Domaine Universitaire BP 95, 38402 St-Martin-d'Hères
The computation of 3D attached cavities on pump blades using a numerical iterative technique is presented. The cavity shape is obtained by imposing a fixed pressure value on the corresponding stream-surface, as boundary condition in a 3D flow calculation in the pump (S1/S2 or 3D EULER code). A criteria for the prediction of the characteristic drop due to cavitaton is proposed. Results obtained for several pump geometries are discussed (SHF-pump, ns 20 and 80 pumps and the LH2 inducer of the SEP VULCAIN motor).
© Société Hydrotechnique de France, 1992
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