| Issue |
La Houille Blanche
Number 7-8, Décembre 1992
|
|
|---|---|---|
| Page(s) | 573 - 578 | |
| DOI | https://doi.org/10.1051/lhb/1992060 | |
| Published online | 01 October 2009 | |
Aspects instationnaires de poches de cavitation : Mesures de pressions et films rapides simultanés
Unsteady behaviour of cavities : simultaneous pressure measurements and high speed film
1
CREMHyG
2
SEP
Abstract
Three experiments have been made to analyse unsteadiness of cavitation phenomena on a Vulcain-type inducer : 1) water simulations on inducer, 2) hydrofoil-type and 3) venturi-type 2D test-sections which modelize the suction side of the inducer blades. In the hydrofoil case, vapor clouds appear periodically. By contrast, the venturi-type test rig does not present any periodic behaviour. In the inducer, another unsteady configuration appears : a cavity pattern moves from blade to blade in the same direction as the rotation.
© Société Hydrotechnique de France, 1992
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