Paul Brandner, Professor, Australian Maritime College University of Tasmania, Australia
Dynamics of Sheet and Cloud Cavitation
Nucleation, interfacial and large-scale dynamics of sheet and cloud cavitation are considered. The scales, scaling and interaction of these phenomena are discussed. Experimental results from various canonical flows about axisymmetric bodies and hydrofoils are used to elucidate the relevant physics.The smallest length-scales involve nucleation and potentially surface effects. Effects of surface topology, cavity leading edge and interfacial phenomena occur at intermediate scales and shedding or cloud cavitation at large scales.
Surface features and topology have the potential to affect all these phenomena, or scales, along with passive and active nucleation as candidate measures for control and mitigation.