Jiahui Han

Quiescent core in turbulent channel flow with spanwise-uniform roughness

Abstract Content of image described in text. This study examines drag and outer-layer similarity in a rough-wall channel with spanwise-uniform bars at pitch-to-height ratios 6, 12 and 24, using direct numerical simulations at italic Re Subscript tau Baseline equals 395 Reτ=395 $ \textit{Re}_{\tau } = 395$ . The quiesc...