Intermittency in a turbulent low temperature gaseous helium jet

Autor:	Bernard Hébral, O. Chanal, Benoît Chabaud, Bernard Castaing
Rok vydání:	2000
Předmět:	Physics Jet (fluid) Turbulence chemistry.chemical_element Mechanics Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Acceleration chemistry law Cascade Intermittency Dissipative system Statistical physics Multiplicative cascade Helium
Zdroj:	The European Physical Journal B. 17:309-317
ISSN:	1434-6028
DOI:	10.1007/s100510070146
Popis:	We analyse experimental velocity measurements on the axis of a low temperature gaseous helium jet. From independent increments arguments, we reproduce the behaviour of structure functions. We show where this approach fails and how the intermittency phenomenon is a small correction. The physical arguments under the multiplicative cascade models for this intermittency imply an acceleration of this cascade close to the dissipative range, which we are able to evidence. This acceleration could be responsible of the apparent Extended Self Similarity between structure functions of various orders.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb8e176caa06d4eb002a1a2b1608dc66 https://doi.org/10.1007/s100510070146 Zobrazit plný text záznamu Full text from SpringerLink