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Distribution of injected power fluctuations in electroconvection | | Tibor Tóth-Katona
; James T. Gleeson
; | | Date: |
22 Jul 2003 | | Subject: | Pattern Formation and Solitons | nlin.PS | | Abstract: | We report on the distribution spectra of the fluctations in the amount of power injected into a liquid crystal undergoing electroconvective flow. The probability distribution functions (PDFs) of the fluctuations as well as the magnitude of the fluctuations have been determined in a wide range of imposed stress both for `unconfined’ and `confined’ flow geometries. These spectra are compared to those found in other systems held far from equilibrium, and find that in certain conditions we obtain the ’’universal’’ PDF form reported in [Phys. Rev. Lett. {f 84}, 3744 (2000)]. Moreover, the PDF approaches this universal form via an interesting mechanism whereby the distribution’s negative tail evolves towards form in a different manner than the positive tail. | | Source: | arXiv, nlin.PS/0307041 | | Other source: | [GID 480169] pmid14754056 | | Services: | Forum | Review | PDF | Favorites | |
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