Study of passive control study of the cavitation instability on a venturi profile

Amélie Danlos (1) , Jean-Mehal Mehal (1) , Christophe Sarraf (1) , Florent Ravelet (1)

1 DynFluid - Laboratoire de Dynamique des Fluides

This paper presents experimental and numerical results concerning the operation of a configuration that includes an axial pump and a bundle of tubes that mimics the cool source of a heat exchanger. The pump used in the tests has a low solidity and two blades designed in forced vortex, the tip clearance is approximately 3.87% of tip radius. The experimental measures of the characteristic curves and of the wall static pressure fluctuations signals upstream and downstream the pump and the exchanger were compared to the numerical results. The numerical simulations were carried out by using a Fluent code, with URANS (Unsteady Reynolds Averaged Navier-Stokes) approach and k-w SST turbulence model.

Mots clés: Pressure Fluctuation; Cavitation; Tubular exchanger; Test ben; Axial pump

Domaines: Mécanique des fluides [physics.class-ph]

Amélie Danlos, Jean-Mehal Mehal, Christophe Sarraf, Florent Ravelet. Study of passive control study of the cavitation instability on a venturi profile. 8th International Symposium on Cavitation (Cav2012), Aug 2012, Singapour, Singapore. pp.689-698. ⟨hal-01381851⟩