Direct simulations of a rough-wall channel flow

By Tomoaki Ikeda, P. Durbin. Journal of Fluid Mechanics, 2007

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An experimental and numerical study of channel flow with rough walls (2005, methodology): “Shortly thereafter, DNS of turbulent channel flow with transverse bar roughness were performed by Miyake, Tsujimoto & Masaru (2001), Ikeda & Durbin (2002), Leonardi et al. (2003, 2004) and Nagano, Hatori & Houra (2004).”
Interactions within the turbulent boundary layer at high Reynolds number (2011, background): “…by partially disrupting the organization of near-wall streaks while favouring the development of wall-normal velocity fluctuations (see e.g. Ikeda & Durbin 2007; Orlandi & Leonardi 2008), with concurrent results of reduced anisotropy and a possible shortening of streamwise length scales…”
Channel flow over large cube roughness: a direct numerical simulation study (2010, result): “Similar results have been found recently in the context of channel flow with two-dimensional roughness (e.g. Ikeda & Durbin 2007) and are well known in the context of atmospheric boundary layers (e.g. Raupach, Finnigan & Brunet 1996; Finnigan 2000; Poggi et al. 2004).”