期刊
JOURNAL OF FLUID MECHANICS
卷 842, 期 -, 页码 1-4出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/jfm.2018.154
关键词
turbulent boundary layers
Thakkar etal. (J. Fluid Mech., vol. 837, 2018, R1) represents a significant advancement in the ability to computationally model rough wall flows. Direct numerical solution (DNS) of turbulent boundary layer flow over an industrial grit blasted surface at relevant roughness Reynolds numbers, from hydraulically smooth to fully rough regimes, is a path forward to parametrically study a wide range of surface roughness. The methodology described in this paper, coupled with validation experiments, ultimately should lead to improved frictional drag predictions.
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