Numerical Study of Cavitating Flows around a Hydrofoil with Deep Analysis of Vorticity Effects

• Published in: Fluid dynamics & materials processing Vol. 21; no. 1; pp. 179 - 204
• Main Authors: Li, Shande, Zhong, Wen’an, Yu, Shaoxing, Wang, Hao
• Format: Journal Article
• Language: English
• Published: Duluth Tech Science Press 2025
• Subjects: Cavitation; Density corrections; Flow velocity; Fluid dynamics; Fluid flow; Heat conductivity; Homogeneous mixtures; Hydrofoils; Investigations; Turbulence models; Viscosity; Vortices; Vorticity
• ISSN: 1555-2578; 1555-256X; 1555-2578
• DOI: 10.32604/fdmp.2024.056228

This paper aims to numerically explore the characteristics of unsteady cavitating flow around a NACA0015 hydrofoil, with a focus on vorticity attributes. The simulation utilizes a homogeneous mixture model coupled with a filter-based density correction turbulence model and a modified Zwart cavitation model. The study investigates the dynamic cavitation features of the thermal fluid around the hydrofoil at various incoming flow velocities. It systematically elucidates the evolution of cavitation and vortex dynamics corresponding to each velocity condition. The results indicate that with increasing incoming flow velocity, distinct cavitation processes take place in the flow field.