Nonlinear Sciences – Chaotic Dynamics
Scientific paper
1997-08-21
Nonlinear Sciences
Chaotic Dynamics
8 pages, REVTEX, 6 postscript figures included. To appear in Phys. Fluids (1997)
Scientific paper
10.1063/1.869485
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.
Marti Arturo C.
Sagues Francesc
Sancho Jose Maria
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