Effect of water injection on tip leakage vortex cavitation for a NACA0009 hydrofoil with medium clearance

Ocean Engineering, Journal Year: 2025, Volume and Issue: 320, P. 120349 - 120349

Published: Jan. 13, 2025

Language: Английский

Research progress in hydrofoil cavitation prediction and suppression methods

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(1)

Published: Jan. 1, 2025

To reduce the adverse damage caused by cavitation phenomena to hydraulic machinery, such as surface erosion of equipment, increased mechanical vibration, and decreased service life, this review summarizes from aspects instability mechanisms, prediction methods, suppression methods. In terms flow two main mechanisms that affect shedding cloud cavitation, reentrant jet, bubbly shock wave, were thoroughly summarized. It is pointed out behavior cavity greatly influenced thickness jet relative cavity, wave also one important factors in vortex dynamics. a detailed comparison analysis made between traditional methods based on numerical simulation currently popular neural networks. The former mainly includes models turbulence models, while latter application chain physics-informed network, pressure–velocity long short-term memory, other networks prediction. artificial intelligence predictive have advantages model order reduction accurate field feature parameters. active passive Finally, current research status hydrofoil article discusses looks forward direction development.

Language: Английский

Active water injection combined with barchan dune vortex generators for cavitating flow noise suppression

Ocean Engineering, Journal Year: 2024, Volume and Issue: 312, P. 119123 - 119123

Published: Sept. 6, 2024

Language: Английский