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The classical theory of turbulence which was developed more than 65 years ago predicts the existence of a single dissipation scale. This scale measures the extension of the smallest turbulent eddies in the flow. Recently, this picture has been extended to that of a whole range of local dissipation scales in order to account for the observed small-scale fluctuations of turbulent structures and to get a better grasp on the statistical properties of turbulence. The present animation shows results from supercomputer simulations that resolve the local dissipation scales for the first time in order to study their spatial distribution and morphology. The calculation, which was performed on the JUMP Cluster at the NIC, is for homogeneous isotropic turbulence in a cube which is resolved with a billion grid cells.


Prof. Dr. Jörg Schumacher, TU Ilmenau

 Download Video Dissipation (FileTypevnd.rn-realmedia, 82 MB)