Abstract
The energy spectral density , where is the spatial wave number, is a well-known diagnostic of homogeneous turbulence and magnetohydrodynamic turbulence. However, in most of the curves plotted by different authors, some systematic kinks can be observed at , 15, and 19. We claim that these kinks have no physical meaning and are in fact the signature of the method that is used to estimate from a three-dimensional spatial grid. In this paper we give another method in order to get rid of the spurious kinks and to estimate much more accurately.
- Received 8 September 2014
DOI:https://doi.org/10.1103/PhysRevE.90.053309
©2014 American Physical Society