Velocity field in the spiral-wave pattern observed in rotating shallow-water experiments
| Autor: | A. Yu. Rylov, K. B. Titishov, E. N. Snezhkin |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Physics
Spiral galaxy business.industry Thin layer Astronomy and Astrophysics Radius Mechanics Instability Vortex Physics::Fluid Dynamics Waves and shallow water Optics Space and Planetary Science Free surface Vector field Astrophysics::Earth and Planetary Astrophysics business Astrophysics::Galaxy Astrophysics |
| Zdroj: | Astronomy Reports. 48:275-287 |
| ISSN: | 1562-6881 1063-7729 |
| DOI: | 10.1134/1.1704673 |
| Popis: | The paper presents the first quantitative results of a laboratory study of the velocity field in a two-arm spiral-wave pattern generated in a steady-state fashion by a hydrodynamical instability in a differentially rotating, thin layer of liquid. The liquid layer has a free surface, and the rotational profile includes an interval where the velocity drops abruptly, as in the gaseous disks of spiral galaxies. The properties of anticyclonic vortices observed between the arms of this pattern at the corotation radius are considered. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|