234 citations · 277 across the 12 of their papers we have counts for
6 papers · 1 filter
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…
Telegraph-type versus diffusion-type models of turbulent relative dispersion
Kentaro Kanatani, Takeshi Ogasawara, Sadayoshi Toh
Properties of two equations describing the evolution of the probability density function (PDF) of the relative dispersion in turbulent flow are compared by investigating their solu…
Turbulent Relative Dispersion in Two-Dimensional Free Convection Turbulence
Takeshi Ogasawara, Sadayoshi Toh
The relative dispersion process in two-dimensional free convection turbulence is investigated by direct numerical simulation. In the inertial range, the growth of relative separati…
A new model of turbulent relative dispersion: a self-similar telegraph equation based on persistently separating motions
Takeshi Ogasawara, Sadayoshi Toh
Turbulent relative dispersion is studied theoretically with a focus on the evolution of probability distribution of the relative separation of two passive particles. A finite separ…
A class of steady solutions to two-dimensional free convection
Sadayoshi Toh, Takeshi Matsumoto
We obtained steady solutions to the two-dimensional Boussinesq approximation equations without mean temperature gradient. This system is referred to as free convection in this pape…