Turbulence in a Cylindrical Container of Argon near Threshold of Convection
- 2 September 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (10) , 1094-1097
- https://doi.org/10.1103/physrevlett.55.1094
Abstract
We present measurements and pattern visualization of convection in a cylindrical container at low Prandtl number. We demonstrate that the weak turbulence previously detected in this situation is clearly an erratic wandering of rolls. We show that the transition from a stationary to a time-dependent pattern involves spontaneous nucleation of dislocations. We analyze this phenomenon in relation to the skewed varicose instability.Keywords
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