Author(s): Aleksandar Stepanovic; Ivan Bozic; Bogdan Ristic; Ivana Vasovic Maksimovic

Linked Author(s):

Keywords: Cavitation; Unsteady numerical simulations; NACA0009 Hydroprofile; Hydrodynamic characteristics

Abstract: Understanding cavitation phenomena is fundamental for improving the design and efficiency of all types of hydraulic machinery and fluid-mechanical systems. This research provides an additional contribution to the unsteady numerical simulation of the NACA0009 hydroprofile, truncated to 90% of its original length, in order to check and confirm its various hydrodynamic characteristics in cavitating conditions, including pressure pulsations. Numerous simulations were performed for different attack angles of the profile under constant cavitation number and constant flow velocity, thus expanding the scope of analysis of pressure, lift, and drag coefficients. Some of the numerical results were verified by the available experimental data and compared with other published results. In addition to quantitative indicators for each flow condition, a visualization of cavitation cloud is also provided, showing better insight into the interaction of fluid and structure.

DOI: https://doi.org/10.1088/1755-1315/1561/1/012013

Year: 2025