Turbulent shear flow over active and passive porous surfaces

By Javier Jiménez, Markus Uhlmann, A. Pinelli, Genta Kawahara. Journal of Fluid Mechanics, 2001

202 citations recorded by the source corpus.

Subfields: Biomedical Engineering, Computational Mechanics

View Paper: https://www.semanticscholar.org/paper/5a6fb6f5b7604c873098826b23f50c31a87e43d4

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In Biomedical Engineering

In Computational Mechanics

Citations in the corpus

Hydrodynamic stability and breakdown of the viscous regime over riblets (2011, background): “They are typically attributed to Kelvin– Helmholtz-like instabilities due to the relaxation of the impermeability condition at the wall, although quantitative analyses supporting that claim are scarce (Jiménez et al. 2001; Py, de Langre & Moulia 2006).”
Initial response of a turbulent channel flow to spanwise oscillation of the walls (2003, background): “Jiménez et al [9] observed the evolution of the friction coefficient in a turbulent channel flow where one of the walls is suddenly made permeable, considering both the initial transient and the final, faster transient when the porosity is switched off.”
Shear instability and coherent structures in shallow flow adjacent to a porous layer (2007, unknown): “Jimenez et al. (2001) found coherent vortices at the interface of a porous layer in numerical simulations, and demonstrated that they arise from a Kelvin–Helmholtz shear instability.”
Linear energy amplification in turbulent channels (2006, result): “This discouraged further research on the subject, although Jiménez et al. (2001) used the eddy viscosity model to explain the turbulent structures observed in a channel with porous walls, where the mean profile is unstable.”
Numerical modelling and passive flow control using porous media (2008, background): “This approach is widely used to study turbulent flows over permeable walls for instance [20,23].”
Using digital holographic microscopy for simultaneous measurements of 3D near wall velocity and wall shear stress in a turbulent boundary layer (2008, background): “There is a consensus that streamwise or quasi-streamwise vortices dominate in the inner layer of the turbulent boundary layer, and are involved in the socalled ‘‘bursting’’ processes (Brooke and Hanratty 1993; Hamilton et al. 1995; Jimenez 2005; Jimenez et al. 2001; Kim et al. 1987; Robinson 1991;”