This paper discusses tests conducted in the hydrodynamic tunnel of the University of Grenoble on a 3D oscillating hydrofoil. Visualization of unsteady tip vortex cavitation indicates a strong influence of the water nuclei content. The investigation was focused on the influence of the oscillation frequency on tip vortex cavitation inception. For very low nuclei content, cavitation inception is strongly delayed as compared to the steady-state results at very small oscillation frequencies. This delay is significantly reduced by nuclei seeding. The results can be explained by assuming that the time required for the inception of cavitation in the tip vortex corresponds to the time necessary for a cavitation nucleus to be captured by the vortex core.

1.
Arndt R. E. A. and Keller A. P., 1991, “Water Quality Effect on Cavitation Inception on a Trailing Vortex,” ASME-JSME Fluids Engineering Conference, Portland, Oregon, June 23–27, FED-Vol. 116, pp. 1–9.
2.
Arndt
R. E. A.
,
Arakeri
V. H.
, and
Higuchi
H.
,
1991
, “
Some Observations of Tip-Vortex Cavitation
,”
Journal of Fluid Mechanics
, Vol.
229
, pp.
269
289
.
3.
Brianc¸on-Marjollet
L.
, and
Michel
J. M.
,
1990
, “
The Hydrodynamic Tunnel of I.M.G.: Former and Recent Equipments
,”
ASME JOURNAL OF FLUIDS ENGINEERING
, Vol.
112
, pp.
338
342
.
4.
Fruman D. H., 1995, “The «Action Concerte´e Cavitation» Program and Accomplishments,” International Symposium on Cavitation, 2–5 May, Deauville, France.
5.
Fruman D. H., Dugue´ C., Pauchet A., Cerrutti P., and Brianc¸on-Marjollet L., 1992, “Tip Vortex Roll-Up and Cavitation,” 19th Symposium on Naval Hydrodynamics, Seoul, Korea, Aug.
6.
Hart, D. P., 1991, “Cavitation Inception in the Tip Vortex Region of an Oscillating Hydrofoil,” 1991, ASME Cavitation and Multiphase Flow Forum, FED-Vol. 109, pp. 35–41.
7.
Hart D. P., Acosta, A., and Leonard, A., 1992, “Observation of Cavitation and Wake Structure of Unsteady Tip Vortex Flows,” International STG Symposium on Propulsors and Cavitation, June 22–24, Hamburg, Germany.
8.
Ligneul
P.
, and
Latorre
R.
,
1989
, “
Study on the Capture and Noise of Spherical Nuclei in the Presence of the Tip Vortex of Hydrofoils and Propellers
,”
Acoustica
, Vol.
68
, pp.
1
14
.
9.
McKenney E. A., and Hart D. P., 1993, “Experimental Determination of Bound Circulation and Shed Vorticity Induced by an Oscillating Hydrofoil,” 1993, ASME Cavitation and Multiphase Flow Forum, FED-Vol. 153, pp. 87–91.
This content is only available via PDF.
You do not currently have access to this content.