Chaotic self-sustaining structure embeded in turbulent-laminar interface
Chaotic Dynamics
2016-04-13 v1 Fluid Dynamics
Abstract
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 converts laminar state into turbulence actively. In other words, this coherent structure has a functionality to generate inhomogeneity by its inner dynamics. The dynamics of this functional coherent structure is isolated using the filtered simulation, and a physical perspective of its dynamics is summarized in a phenomenological model called an "ejection-jet" cycle, which includes multiscale interaction process.
Keywords
Cite
@article{arxiv.1503.04551,
title = {Chaotic self-sustaining structure embeded in turbulent-laminar interface},
author = {Toshiki Teramura and Sadayoshi Toh},
journal= {arXiv preprint arXiv:1503.04551},
year = {2016}
}