Coherent Structure Extraction and Dynamically Adaptive Simulation Standing on Wavelet
Takuya Tsuji, Takehiko Yokomine, Akihiko Shimizu · Journal of the Visualization Society of Japan · 2004
Extraction of coherent structure of turbulence by the wavelet thresholding method is demonstrated. The method is not only a basis of dynamically adaptive algorithm but a powerful tool to improve our understanding of physics of turbulence. The method is applied to steady isotropic homogeneous turbulence filed. It is shown that the wavelet can extract the energetic components with lower degree of freedom while the multi-scale nature of turbulence is not destroyed.