University of Illinois Urbana-Champaign

Localized Turbulent Flows on Scouring Granular Beds

Gioia, Gustavo; Bombardelli, Fabian A.

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https://hdl.handle.net/2142/960

Description

Title
Localized Turbulent Flows on Scouring Granular Beds
Author(s)
  • Gioia, Gustavo
  • Bombardelli, Fabian A.
Issue Date
2005
Keyword(s)
Turbulent flow
Abstract
In many applications a sustained, localized turbulent flow scours a cohesionless granular bed to form a pothole. Here we use similarity methods to derive a theoretical formula for the equilibrium depth of the pothole. Whereas the empirical formulas customarily used in applications contain numerous free exponents, the theoretical formula contains a single one, which we show can be determined via the phenomenological theory of turbulence. Our derivation affords insight into how a state of dynamic equilibrium is attained between a granular bed and a localized turbulent flow.
Publisher
American Physical Society
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/960
DOI
https://doi.org/10.1103/PhysRevLett.95.014501
Has Version(s)
Previously released as: TAM Report 1065. http://hdl.handle.net/2142/323.
Copyright and License Information
Copyright owned by American Physical Society 2005.

Owning Collections

Published Papers - Theoretical and Applied Mechanics (TAM) PRIMARY
Papers published by faculty in Theoretical and Applied Mechanics