Competing states in a Couette-Taylor system with an axial flow
Abstract
We present experimental results on novel pattern states which were observed in the Couette-Taylor flow subjected to an axial flow, in a wide range of the control parameters. Propagating Taylor vortices (PTV's), stationary spirals (SSP's), and moving spirals (MS's) were found as a result of a different symmetry breaking. These modes exhibit different wave-number selection. Novel states originating from an interaction between these patterns were also found. A ``mixed phase'' of PTV's and SSP's was identified. A ``mode-competition'' state, in which the PTV's and MS's are alternated in the column, is also described. Finally, a ``disordered-Taylor-vortices'' state was observed and characterized.
- Publication:
-
Physical Review E
- Pub Date:
- May 1994
- DOI:
- 10.1103/PhysRevE.49.4077
- Bibcode:
- 1994PhRvE..49.4077T
- Keywords:
-
- 47.20.-k;
- 47.60.+i;
- 47.54.+r;
- Flow instabilities;
- Flows in ducts channels nozzles and conduits