Generation and characterization of absolute equilibrium of compressible flows
Author
dc.contributor.author
Krstulovic, Giorgio
Author
dc.contributor.author
Cartes, Carlos
es_CL
Author
dc.contributor.author
Brachet, Marc
es_CL
Author
dc.contributor.author
Tirapegui Zurbano, Enrique
es_CL
Admission date
dc.date.accessioned
2014-01-09T19:13:33Z
Available date
dc.date.available
2014-01-09T19:13:33Z
Publication date
dc.date.issued
2009
Cita de ítem
dc.identifier.citation
International Journal of Bifurcation and Chaos, Vol. 19, No. 10 (2009) 3445–3459
en_US
Identifier
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doi: 10.1142/S021812740902489X
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/126142
General note
dc.description
Artículo de publicación ISI.
en_US
Abstract
dc.description.abstract
A short review is given of recent papers on the relaxation to (incompressible) absolute equilibrium.
A new algorithm to construct absolute equilibrium of spectrally truncated compressible
flows is described. The algorithm uses stochastic processes based on the Clebsch representation
of the velocity field to generate density and velocity fields that follow by construction the absolute
equilibrium stationary probability. The new method is shown to reproduce the well-known
Gaussian results in the incompressible limit. The irrotational compressible absolute equilibrium
case is characterized and the distribution is shown to be non-Gaussian. The high-temperature
compressible spectra are found not to obey k2 scaling. Finally, oscillating behavior in constantpressure
variable-temperature relaxation is obtained, suggesting the presence of second sound.