pages 1239-1250
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1280
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Aleksandra Yu. Kravtsova
Department of Physics, Novosibirsk State University; Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences
(IT SB RAS), 1, Lavrentyev Ave., Novosibirsk, 630090, Russia
Dmitriy M. Markovich
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences
(IT SB RAS), 1, Lavrentyev Ave., Novosibirsk, 630090, Russia; Department of Physics, Novosibirsk State University (NSU), 1, Pirogov Str., Novosibirsk, 630090, Russia; Institute of Power Engineering, Tomsk Polytechnic University (TPU), 30, Lenin Ave., Tomsk, 634050, Russia
Konstantin S. Pervunin
Clean Energy Processes (CEP) Laboratory, Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom; Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences
(IT SB RAS), 1, Lavrentyev Ave., Novosibirsk, 630090, Russia; Department of Physics, Novosibirsk State University (NSU), 1, Pirogov Str., Novosibirsk, 630090, Russia
Mikhail V. Timoshevskiy
Institute of Thermophysics, the Russian Academy of Sciences, Siberian Branch 1, Lavrentyev Avenue, 630090, Novosibirsk, Russia
摘要
The main emphasis of the work is put on experimental study of spatial structure and dynamics of gas-vapor cavities and turbulent structure of cavitating turbulent flows around the plate with rounded nose, the NACA0015 hydrofoil and the cascade of three identical NACA0015 hydrofoils. The flows were investigated for different angles of incidence α = 0, 3, 6 and 9° with variation of cavitation number σ from 6 for the cascade down to 0.6 for the single hydrofoil. As a result, the full set of statistical moments of turbulent fluctuations (including the third-order ones) was calculated for all the regimes. Comparison of turbulent characteristics was performed for different cavity types and the main particularities of the flows were pointed out.