Formation and collapse of concentric focusing waves in Faraday wave field
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- WATANABE Yasunori
- 北海道大学大学院 工学研究院
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- KOJIMA Ryota
- 北海道大学大学院 工学研究科
Bibliographic Information
- Other Title
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- Faraday波動場における波浪集中と崩壊過程
- Faraday ハドウジョウ ニ オケル ハロウ シュウチュウ ト ホウカイ カテイ
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Description
<p> In this study, the Faraday wave field, created in vertically oscillating cylindrical containers, was investigated to experimentally simulates a flip-through event caused by concentric focusing waves. We found parametric free-surface oscillation featuring transient oscillation modes. When a cavity, formed at a center of the container, is collapsed by convergent concentric waves, the cavity surface is ejected at high vertical acceleration to form the vertical flip-through jet. Capillary waves, generated at the tip of jet, propagate with orientation of the Faraday oscillation mode, which contributes breakup of the flip-through jet.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76 (2), I_13-I_18, 2020
Japan Society of Civil Engineers
