Stochastically generated turbulence for wall bounded flows

Relationship between Turbulence Modulation and Skewness in Wall Bounded Flows

Recent investigations into wall-bounded turbulent flows have shown a nonlinear scale interaction, whereby the largescale motion amplitude modulates the small-scale structures (Hutchins & Marusic, 2007b). Mathis et al. (2009) developed a scheme to quantify the degree of modulation using a decoupling procedure, based on the Hilbert transformation applied to the filtered small-scale component of t...

Geometry of turbulence in wall-bounded shear flows: periodic orbits

The dynamical theory of moderate Reynolds number turbulence triangulates the infinite-dimensional Navier-Stokes state space by sets of exact solutions (equilibria, relative equilibria, periodic orbits, ...) which form a rigid backbone which enables us to describe and predict the sinuous motions of a turbulent fluid. We report determination of a set of unstable periodic orbits from close recurre...

Wall-bounded turbulence

A predictive inner–outer model for streamwise turbulence statistics in wall-bounded flows

ROMAIN MATHIS, NICHOLAS HUTCHINS and IVAN MARUSIC Journal of Fluid Mechanics / Volume 681 / August 2011, pp 537 ­ 566 DOI: 10.1017/jfm.2011.216, Published online: 05 July 2011 Link to this article: http://journals.cambridge.org/abstract_S0022112011002163 How to cite this article: ROMAIN MATHIS, NICHOLAS HUTCHINS and IVAN MARUSIC (2011). A predictive inner–outer model for streamwise turbulence s...

Decaying Two-dimensional Turbulence in Bounded Flows

Two-dimensional turbulence in unbounded or double periodic domains, in Navier-Stokes fluids and plasmas has been investigated intensively during the last decades by means of numerical simulations. The presence of an inertial range in the energy spectrum of these flows has been well documented. As two-dimensional flows exhibit an inverse cascade in the energy, coherent structures comparable with...