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Evaluation of pressure decrease at vortex center from velocity distribution around vortex cavitation

Ezure, Toshiki ; Ito, Kei; Kameyama, Yuri*; Kamide, Hideki ; Kunugi, Tomoaki*

In this study, fundamental behavior of vortex cavitation was studied in cylindrical tank geometry related to establishment of an evaluation method of vortex cavitation in sodium-cooled fast reactors. Velocity distribution around vortex, which causes cavitation, was quantitatively grasped by means of Particle Image Velocimetry. Pressure drop at vortex center was also evaluated based on Burgers vortex model and compare to occurrence behavior of vortex cavitation.



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