Physics – Plasma Physics
Scientific paper
2005-06-09
Phys.Rev. E72 (2005) 045301
Physics
Plasma Physics
Finite size box effects have been taken into account in the definition of the partition function. This has resulted in a more
Scientific paper
10.1103/PhysRevE.72.045301
We present direct numerical simulations and Lagrangian averaged (also known as alpha-model) simulations of forced and free decaying magnetohydrodynamic turbulence in two dimensions. The statistics of sign cancellations of the current at small scales is studied using both the cancellation exponent and the fractal dimension of the structures. The alpha-model is found to have the same scaling behavior between positive and negative contributions as the direct numerical simulations. The alpha-model is also able to reproduce the time evolution of these quantities in free decaying turbulence. At large Reynolds numbers, an independence of the cancellation exponent with the Reynolds numbers is observed.
Mininni Pablo Daniel
Pietarila-Graham Jonathan
Pouquet Annick
No associations
LandOfFree
Cancellation exponent and multifractal structure in two-dimensional magnetohydrodynamics: direct numerical simulations and Lagrangian averaged modeling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cancellation exponent and multifractal structure in two-dimensional magnetohydrodynamics: direct numerical simulations and Lagrangian averaged modeling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cancellation exponent and multifractal structure in two-dimensional magnetohydrodynamics: direct numerical simulations and Lagrangian averaged modeling will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-170918