Back to Search
Start Over
Visual and dynamical measurement of Rayleigh-Benard convection by using fiber-based digital holographic interferometry
- Source :
- Journal of Applied Physics. 112:113113
- Publication Year :
- 2012
- Publisher :
- AIP Publishing, 2012.
-
Abstract
- We present a method for visual and dynamical measurement of the Rayleigh-Benard convection by using fiber-based digital holographic interferometry. A SM600 fiber with 4 μm core diameter is used instead of conventional pinhole, which has better performance to filter out the noises, effectively modify the structure of the optical path and relax the requirement of the laser performance (e.g., coherence length and beam uniformity). The experimental results show the development process of Rayleigh-Benard cell in the container. The corresponding Rayleigh number is 3.6. In the process, the temperature at the top and bottom plates is controlled at 295 K and 300 K, respectively. The measured temperature distribution and the number of Rayleigh-Benard cell are verified by using simulation and are in good agreement.
- Subjects :
- Physics
White light interferometry
Optical fiber
business.industry
General Physics and Astronomy
Rayleigh number
Holographic interferometry
Coherence length
law.invention
Physics::Fluid Dynamics
Optical path
Optics
law
Electronic speckle pattern interferometry
business
Rayleigh–Bénard convection
Subjects
Details
- ISSN :
- 10897550 and 00218979
- Volume :
- 112
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Physics
- Accession number :
- edsair.doi...........44e7042ec3bdd870568822333d873a6d
- Full Text :
- https://doi.org/10.1063/1.4768911