@article{ISI:000259793800029, abstract = {It is shown that the use of a high power alpha of the Laplacian in the dissipative term of hydrodynamical equations leads asymptotically to truncated inviscid conservative dynamics with a finite range of spatial Fourier modes. Those at large wave numbers thermalize, whereas modes at small wave numbers obey ordinary viscous dynamics [C. Cichowlas et al., Phys. Rev. Lett. 95, 264502 (2005)]. The energy bottleneck observed for finite alpha may be interpreted as incomplete thermalization. Artifacts arising from models with alpha > 1 are discussed.}, article-number = {144501}, author = {Frisch, Uriel and Kurien, Susan and Pandit, Rahul and Pauls, Walter and Ray, Samriddhi Sankar and Wirth, Achim and Zhu, Jian-Zhou}, doi = {10.1103/PhysRevLett.101.144501}, issn = {0031-9007}, journal = {PHYSICAL REVIEW LETTERS}, month = {OCT 3}, number = {14}, times-cited = {101}, title = {Hyperviscosity, galerkin truncation, and bottlenecks in turbulence}, unique-id = {ISI:000259793800029}, volume = {101}, year = {2008} }