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The effect of nuclei on the attachment hysteresis in cavitating trailing vortices
conference contribution
posted on 2023-05-23, 15:07 authored by James VenningJames Venning, Paul, RA, Khoo, MT, Bryce PearceBryce Pearce, Paul BrandnerPaul BrandnerThe incidence hysteresis between the attachment and detachment angles of a trailing vortex cavity behind an elliptical hydrofoil is investigated for two nuclei populations in a cavitation tunnel. Deplete and dense population were realized through natural and artificially seeded nuclei, respectively. The cavitation appearance was monitored for a range of incidences, and two hysteretic behaviours were observed. In a nuclei-deplete flow, the temporal delay equired to ingest and activate a susceptible nucleus and associated additional tension caused a larger incidence for cavity attachment. With dense seeding, however, the continual supply of nuclei into the cavity sustained the attached cavity at much lower incidences.
History
Publication title
Conference ProceedingsDepartment/School
Australian Maritime CollegePublication status
- Accepted
Event title
CAV2021: 11th International Symposium on CavitationEvent Venue
Daejon, KoreaDate of Event (Start Date)
2021-05-10Date of Event (End Date)
2021-05-13Rights statement
Copyright unknownRepository Status
- Restricted