Onset of Coherent Oscillations in Turbulent Rayleigh-Benard Convection
Journal Article
·
· Physical Review Letters
We report temperature cross correlation and velocity profile measurements in the aspect-ratio-one convection cell filled with water. A sharp transition from a random chaotic state to a correlated turbulent state of finite coherence time is found when the Rayleigh number becomes larger than a critical value Ra{sub c}{approx_equal} 5 x 10{sup 7} . The experiment reveals a unique mechanism for the onset of coherent oscillations in turbulent Rayleigh-Benard convection.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40277460
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 87; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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