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Modulated rotating convection : radially travelling concentric rolls
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rubio, Angel López, Juan M. Marqués, Francisco |
| Copyright Year | 2008 |
| Abstract | Recent experiments in rotating convection have shown that the spatio-temporal bulk convective state with Küppers–Lortz dynamics can be suppressed by small-amplitude modulations of the rotation rate. The resultant axisymmetric pulsed target patterns were observed to develop into axisymmetric travelling target patterns as the modulation amplitude and Rayleigh number were increased. Using the Navier–Stokes– Boussinesq equations with physical boundary conditions, we are able to numerically reproduce the experimental results and gain physical insight into the responsible mechanism, relating the onset of the travelling target patterns to a symmetry-restoring saddle-node on an invariant circle bifurcation. Movies are available with the online version of the paper. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.fa.upc.edu/websfa/fluids/marques/pdf/jfm_RLM07.pdf |
| Alternate Webpage(s) | https://math.la.asu.edu/~lopez/pdf/jfm_RLM08_modBulk.pdf |
| Alternate Webpage(s) | http://math.la.asu.edu/~lopez/pdf/jfm_RLM08_modBulk.pdf |
| Alternate Webpage(s) | http://stat.asu.edu/~lopez/pdf/jfm_RLM08_modBulk.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Bifurcation theory Convection Experiment Modulation Navier–Stokes equations Node - plant part Numerical analysis Onset (audio) Rayleigh–Ritz method Resultant |
| Content Type | Text |
| Resource Type | Article |
