| Автор | Mohseni, Kamran |
| Дата выпуска | 2006-12-01 |
| dc.description | Cephalopods, among other marine animals, use jet propulsion for swimming. A simple actuator is designed to loosely mimic pulsatile jet formation in squid and jellyfish. The actuator is comprised of a cavity with an oscillating diaphragm and an exit orifice. Periodic oscillation of the diaphragm results in the formation of an array of vortex rings and eventually could generate a periodic pulsatile jet. A general formulation for calculating the velocity of a steadily translating vortical structure in two-dimensional and axi-symmetric shear flows is presented. This technique is based on taking the variational derivative of an energetic function at its critical point. This technique is general, applicable to vortices in liquid and gas media, with no limitation on the relative size of the vortex core. The technique is then implemented to estimate the translational velocity of a vortex ring in a Helmholtz vortex ring generator. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2006 IOP Publishing Ltd |
| Название | A formulation for calculating the translational velocity of a vortex ring or pair |
| Тип | paper |
| DOI | 10.1088/1748-3182/1/4/S08 |
| Print ISSN | 1748-3190 |
| Журнал | Bioinspiration & Biomimetics |
| Том | 1 |
| Первая страница | S57 |
| Последняя страница | S64 |
| Последняя страница | 7 |
| Аффилиация | Mohseni, Kamran; Department of Aerospace Engineering, University of Colorado, Boulder, CO 80309-429, USA |
| Выпуск | 4 |
