|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Blowing a fuse and the dynamic double helix
If you have a question about this talk, please contact Stephen J. Cowley.
Two unrelated problems are discussed. In the first, the breakdown of an electric fuse is considered. It is assumed that the wire melts and the liquid pinches off in finite time. Similarity solutions close to pinchoff are sought in the longwave limit and compared with high-speed photographic images.
The second problem considers the dynamo produced by laminar flow of conducting fluid down helical pipes. Such steady flow generates magnetic field spontaneously. Animations of the fully nonlinear behaviour of this dynamo are presented, showing oscillations, quenching and reversal. Calculations are extended to two interwoven helical pipes which drive a dynamo in a wider range of Reynolds numbers.
This talk is part of the Monday Mechanics Seminars (DAMTP) series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsEnvironment SciSoc – Cambridge University Scientific Society Climate Histories Interdisciplinary Seminar Series
Other talksPrevention is Better than Cure: closing lecture by the Vice Chancellor Health Economics @ Cambridge seminar Risk prediction using common genetic variants The role of zinc as a physiologically relevant platelet agonist Deciphering signaling specificity in development, one phosphate at a time Health Economics @ Cambridge seminar