Modeling the Impact of a Vortex Ring on a Solid Surface

The effect of interaction between a vortex ring and a solid surface is experimentally and theoretically investigated. Analytical formulas are provided that allow describing the pressure pulses arising when the vortex ring passes near the flat surface. The forms of pressure pulses are compared with t...

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Bibliographic Details
Published inTechnical physics letters Vol. 44; no. 12; pp. 1222 - 1225
Main Authors Kuibin, P. A., Skripkin, S. G., Tsoi, M. A., Shtork, S. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2018
Springer Nature B.V
Subjects
Classical and Continuum Physics
Flat surfaces
Hydraulic turbines
Physics
Physics and Astronomy
Pressure pulses
Solid surfaces
Vortex rings
Vortices
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Summary:The effect of interaction between a vortex ring and a solid surface is experimentally and theoretically investigated. Analytical formulas are provided that allow describing the pressure pulses arising when the vortex ring passes near the flat surface. The forms of pressure pulses are compared with those recorded in the experiment. The results may be utilized to predict the off-design regimes of a hydraulic turbine; such regimes are characterized by aperiodic high impacts in the hydraulic turbine’s circuit behind the runner.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785019010115