Author:
Skripkin Sergey G.,Tsoy Mikhail A.,Kravtsova Aleksandra Yu.
Abstract
AbstractAn experimental study of a cavitating NACA0012 hydrofoil with aspect ratio 0.02 in a slit channel was carried out using a high-speed visualization at sampling rate more than 100 kHz. The features of the formation and development of cavities in a quasi-two-dimensional turbulent flow were studied. The most energetic modes of unsteady cavitation flow around the hydrofoil were obtained using dynamic mode decomposition. The presence of the second and third modes in the cavitation flow is shown here for the first time. It was shown that each of these modes corresponds to a certain period of development of the unsteady cavity. Experimental data on the reverse motion of the vapor–gas mixture into the inner region of supercavitation are presented.
Funder
Russian Science Foundation
Publisher
Springer Science and Business Media LLC
Reference34 articles.
1. Jawahar, C. P. & Michael, P. A. A review on turbines for micro hydro power plant. Renew. Sustain. Energy Rev. 72, 882–887 (2017).
2. Vagnoni, E., Andolfatto, L., Richard, S., Münch-Alligné, C. & Avellan, F. Hydraulic performance evaluation of a micro-turbine with counter rotating runners by experimental investigation and numerical simulation. Renew. Energy 126, 943–953 (2018).
3. Knapp, R. T., Daily, J. W. & Hammitt, F. G. Cavitation. (1970).
4. Franc, J. P. & Michel, J. M. Fundamentals of Cavitation (Springer, 2004).
5. Zhang, H., Zuo, Z., Mørch, K. A. & Liu, S. Thermodynamic effects on Venturi cavitation characteristics. Phys. Fluids 31(9), 097107 (2019).
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献