Adaptive Direct Numerical Simulation with Spatially-Anisotropic Wavelet-Based Refinement
In the wavelet-based adaptive multi-resolution approach to the numerical simulation of turbulent flows, the separation between resolved energetic structures and unresolved flow motions is achieved through the application of a wavelet thresholding filter. For very small threshold values, the effect of residual motions upon the resolved flow dynamics can be completely neglected, which leads to the adaptive Wavelet-based Direct Numerical Simulation (W-DNS) approach.
This work was supported by the Russian Science Foundation (Project 16-11-10350). This support is gratefully acknowledged. Authors are also thankful for the computing time on the Janus supercomputer, which was supported by the US National Science Foundation (award number CNS-0821794) and the University of Colorado Boulder. The Janus supercomputer was a joint effort of the University of Colorado Boulder, the University of Colorado Denver and the US National Center for Atmospheric Research.
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