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Front dynamics in turbulent media
Martí Pérez, Arturo C.; Sagués i Mestre, Francesc; Sancho, José M.
Universitat de Barcelona
A study of a stable front propagating in a turbulent medium is presented. The front is generated through a reaction-diffusion equation, and the turbulent medium is statistically modeled using a Langevin equation. Numerical simulations indicate the presence of two different dynamical regimes. These regimes appear when the turbulent flow either wrinkles a still rather sharp propagating interfase or broadens it. Specific dependences of the propagating velocities on stirring intensities appropriate to each case are found and fitted when possible according to theoretically predicted laws. Different turbulent spectra are considered.
2012-05-03
Mecànica de fluids
Turbulència
Hidrodinàmica
Estadística
Mètode de Montecarlo
Dynamics
Turbulence
Statistics
Speed
Combustion
(c) American Institute of Physics, 1997
Article
info:eu-repo/semantics/publishedVersion
American Institute of Physics
         

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