The interaction of internal gravity waves with a vortex ring

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• Laura Irvine (DAMTP)
• Friday 26 May 2023, 13:00-14:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

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We will be meeting for lunch at 1pm and the talk will be starting around 1:30pm. Please email us at damtp-gkb-request@lists.cam.ac.uk if you would like to join us for lunch.

Internal waves are responsible for significant mixing in the ocean and distribute energy through a variety of mechanisms. Triadic resonance instability (TRI) is one such mechanism, in which an internal wavebeam above a critical amplitude emits two ‘child’ internal wavebeams. We investigate how interaction with a vortex ring can trigger this instability at a lower amplitude than the critical, and show some experiments trying to understand which aspects of the vortex ring are causing the collapse.

This talk is part of the G.K. Batchelor Laboratory lunchtime seminar series.

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