Localized Turbulent Flows on Scouring Granular Beds
作者： G. Gioia , Fabián A. Bombardelli
DOI: 10.1103/PHYSREVLETT.95.014501
关键词:
摘要: In many applications a sustained, localized turbulent flow scours cohesionless granular bed to form pothole. Here we use similarity methods derive theoretical formula for the equilibrium depth of Whereas empirical formulas customarily used in contain numerous free exponents, contains single one, which show can be determined via phenomenological theory turbulence. Our derivation affords insight into how state dynamic is attained between and flow.
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