6. Physics of a Fluid, Neutral and Ionized Gases

APPLICATION OF PARTICLE IMAGE VELOCIMETRY TECHNIQUE TO STUDY THE TURBULENT STRUCTURE OF CAVITATING FLOWS AROUND A CASCADE OF NACA0015 SERIES HYDROFOILS

Vladimir M. Dulin
1. Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
vmd@itp.nsc.ru
Aleksandra Yu. Kravtsova
1. Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
Dmitriy M. Markovich
1. Kutateladze Institute of Thermophysics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
dmark@itp.nsc.ru
The material was received by the Editorial Board: 11.09.2011
The results of the application of PIV technique to study the turbulent structure of cavitating flows around a cascade of NACA0015 series hydrofoils are presented. Based on instantaneous velocity fields measured, spatial distributions of the mean velocity were calculated as well as the second-order statistical moments of liquid velocity fluctuations. Quantitative characteristics of the flows around the cascade and a solitary profile were demonstrated to be considerably different due mainly to discrepancies in distributions of the mean pressure and mutual impact of cavitation clouds.

Keywords:
cavitation, Particle Image Velocimetry, cascade of hydrofoils, large-scale vortices.
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APPLICATION OF PARTICLE IMAGE VELOCIMETRY TECHNIQUE TO STUDY THE TURBULENT STRUCTURE OF CAVITATING FLOWS AROUND A CASCADE OF NACA0015 SERIES HYDROFOILS
References: Dulin V. M., Kravtsova A. Yu., Markovich D. M., Pervunin K. S., Timoshevskiy M. V. APPLICATION OF PARTICLE IMAGE VELOCIMETRY TECHNIQUE TO STUDY THE TURBULENT STRUCTURE OF CAVITATING FLOWS AROUND A CASCADE OF NACA0015 SERIES HYDROFOILS. Vestnik NSU. Series: Physics. 2011, vol. 6, no. 4. P. 70–81 (in Russ.). DOI: 10.54362/1818-7919-2011-6-4-70-81