Experimental Study of Cavitation in Laminar Flow

Kilian Croci (1) , Florent Ravelet (1) , Jean-Christophe Robinet (1) , Amélie Danlos (1)

1 DynFluid - Laboratoire de Dynamique des Fluides

An experimental setup has been especially developed in order to observe cavitation in laminar flows. Experiments have been carried out with a silicon oil of viscosity υ = 100cSt passing through a Venturi-type geometry with 18°/8° convergent/divergent angles respectively. The range of Reynolds numbers at the inlet section is between 350 and 1000. Two dynamic regimes are identified. They are characterized by two critical Reynolds numbers, induced by major hydrodynamic changes in the flow, in addition to a hysteresis effect between the inception and the disappearance of cavitation.

Mots clés: laminar flows; cavitation regimes; cavitation inception; bubbles; hysteresis; gaseous cavitation regimes

Domaines: Dynamique des Fluides [physics.flu-dyn]

Kilian Croci, Florent Ravelet, Jean-Christophe Robinet, Amélie Danlos. Experimental Study of Cavitation in Laminar Flow. 10th International Cavitation Symposium, May 2018, Baltimore, United States. ⟨10.1115/1.861851_ch80⟩. ⟨hal-01654674v2⟩