Abstract
We present experimental measurements of the velocity of a convective vortex front propagating into an unstable conductive state in a Rayleigh-Bénard system for the wide range of μ (μ"T/"Tc-1) between 4×10-4 and 2.5×10-1. The results are found to be in excellent quantitatitve agreement with the theoretical predictions following from an amplitude equation, exhibiting a sharp selection mechanism in the propagation velocity. Wave-number selection by this dynamical mechanism is also studied.
| Original language | English |
|---|---|
| Pages (from-to) | 1332-1335 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 58 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |