234 citations · 277 across the 12 of their papers we have counts for
12 papers
Two-time Lagrangian velocity correlation function for particle pairs in two-dimensional inverse energy-cascade turbulence
Tatsuro Kishi, Takeshi Matsumoto, Sadayoshi Toh
We numerically investigate a two-time Lagrangian velocity correlation function (TTLVCF) for particle pairs in two-dimensional energy inverse-cascade turbulence. We consider self si…
Non-Kolmogorov scaling for two-particle relative velocity in two-dimensional inverse energy-cascade turbulence
Tatsuro Kishi, Takeshi Matsumoto, Sadayoshi Toh
Herein,we numerically examine the relative dispersion of Lagrangian particle pairs in two-dimensional inverse energy-cascade turbulence. Behind the Richardson-Obukhov law of…
Subcritical laminar-turbulence transition with wide domains in simple two-dimensional Navier-Stokes flow without walls
Yoshiki Hiruta, Sadayoshi Toh
We have confirmed numerically that a subcritical laminar-turbulence transition that belongs to directed percolation (DP) universality class occurs in a purely two-dimensional (2D)…
Intermittent direction reversals of moving spatially-localized turbulence observed in two-dimensional Kolmogorov flow
Yoshiki Hiruta, Sadayoshi Toh
We have found that in two-dimensional Kolmogorov flow a single spatially-localized turbulence (SLT) exists stably and travels with a constant speed on average switching the moving…
Chaotic self-sustaining structure embeded in turbulent-laminar interface
Toshiki Teramura, Sadayoshi Toh
An iterface structure between turbulence and laminar flow is investigated in two-dimensional channel flow. This spatially localized structure not only sustains itself, but also con…
Damping filter method for obtaining spatially localized solutions
Toshiki Teramura, Sadayoshi Toh
Spatially localized structures are key components of turbulence and other spatio-temporally chaotic systems. From a dynamical systems viewpoint, it is desirable to obtain correspon…