G
Genta Kawahara
Researcher at Osaka University
Publications - 102
Citations - 2546
Genta Kawahara is an academic researcher from Osaka University. The author has contributed to research in topics: Turbulence & Vortex. The author has an hindex of 20, co-authored 99 publications receiving 2244 citations. Previous affiliations of Genta Kawahara include Ehime University & Kyoto University.
Papers
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Periodic motion embedded in plane Couette turbulence: regeneration cycle and burst
Genta Kawahara,Shigeo Kida +1 more
TL;DR: In this paper, two time-periodic solutions with genuine three-dimensional structure are numerically discovered for the incompressible Navier-Stokes equation of a constrained plane Couette flow.
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The Significance of Simple Invariant Solutions in Turbulent Flows
TL;DR: In this paper, the authors describe some fundamental and practical aspects of dynamical systems theory for the investigation of turbulence, focusing on recently found invariant solutions and their significance for the dynamical and statistical characterization of low-Reynolds-number turbulent flows.
Journal ArticleDOI
The Significance of Simple Invariant Solutions in Turbulent Flows
TL;DR: In this article, the authors describe some fundamental and practical aspects of dynamical systems theory for the investigation of turbulence, focusing on recently found invariant solutions and their significance for the dynamical and statistical characterization of low-Reynolds-number turbulent flows.
Journal ArticleDOI
Turbulent shear flow over active and passive porous surfaces
TL;DR: The behavior of turbulent shear flow over a mass-neutral permeable wall is studied numerically in this paper, where the transpiration is assumed to be proportional to local pressure fluctuations.
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Reynolds number dependence of mean flow structure in square duct turbulence
TL;DR: In this paper, the authors performed direct numerical simulations of turbulent flows in a square duct considering a range of Reynolds numbers spanning from a marginal state up to fully developed turbulent states at low Reynolds numbers and found that high velocity streaks are preferentially located in the corner region (e.g. less than 50 wall units apart from a sidewall), flanked by low velocity ones.