University of Cambridge > Talks.cam > BSS Formal Seminars > Capillary-Gravity Waves

  Browse A-Z

Log in

Cambridge users (raven)details Other usersdetails No account?details

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

Capillary-Gravity Waves

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Dr Kalin Dragnevski.

It is generally believed that in order to generate waves, a small object (like an insect) moving at the air-water surface must exceed the minimum capillary-gravity wave speed (about 23 centimeters per second). We have shown recently that this result is only valid for a rectilinear uniform motion, an assumption often overlooked in the literature. In the case of a steady circular motion (a situation of particular importance for the study of whirligig beetles), we demonstrate that no such velocity threshold exists and that even at small velocities a finite wave drag is experienced by the object. This wave drag originates from the emission of a spiral-like wave pattern. It would be very interesting to know if whirligig beetles can take advantage of such spirals for echolocation purposes.

This talk is part of the BSS Formal Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

2016 lists Type the title of a new list here Abcam meetings

Other talks

Café Synthetique: Graduate Talks! Cohomology of the moduli space of curves Cambridge-Lausanne Workshop 2018 - Day 1 Replication or exploration? Sequential design for stochastic simulation experiments DataFlow SuperComputing for BigData A polyfold lab report Lecture Supper: James Stuart: Radical liberalism, ‘non-gremial students’ and continuing education The Productivity Paradox: are we too busy to get anything done? Cyclic Peptides: Building Blocks for Supramolecular Designs An intellectual history of the universal basic income
 

© 2006-2024 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity