Flow pattern in the scour hole around a cylinder
作者： W.H. Graf , I. Istiarto
DOI: 10.1080/00221680209499869
关键词: Turbulence 、 Symmetry (physics) 、 Plane (geometry) 、 Pier 、 Cylinder 、 Flow (psychology) 、 Geotechnical engineering 、 Vorticity 、 Mechanics 、 Potential flow around a circular cylinder 、 Geology
摘要: Local scour around a bridge pier (cylinder) is problem of much concern to hydraulic engineers. This complex phenomenon resulting from the interaction three-dimensional turbulent flow field cylinder and mobile channel bed (see Fig. 1). In vicinity cylinder, scouring consequence. this paper, held in an established (equilibrium) hole experimentally investigated. An acoustic-Doppler velocityprofiler (ADVP) was used measure instantaneously three components velocities vertical symmetry (stagnation) plane before after cylinder. The vorticity calculated. Results study show, that vortex-system front trailing wake-vortex system strong turbulence formed rear
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