Article
 

Evidence for the influence of form drag on bottom boundary layer flow

Public Deposited

Contenu téléchargeable

Télécharger le fichier PDF
https://ir.library.oregonstate.edu/concern/articles/g158bj90c

Descriptions

Attribute NameValues
Creator
Abstract
  • An experiment in 199 m of water on the Oregon shelf produced continuous current speed profiles down to the sediment-water interface. These profiles show that the velocity structure above the viscous sublayer is consistent with that expected when form drag influences the boundary layer flow. They show two logarithmic-profile regions, each yielding a different stress estimate. The stress calculated from the upper one reflects the influence of form drag and is more than 4 times the bed stress determined from the shear in the viscous sublayer. When form drag is significant, the application of logarithmic profile or Reynolds stress techniques to measurements more than a few tens of centimeters from the bed may yield bed stress estimates inappropriate for use in near-bed sediment transport or entrainment calculations. Large roughness-length or drag-coefficient values do not prove that a viscous sublayer does not exist.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Chriss, T. M., & Caldwell, D. R. (1982). Evidence for the influence of form drag on bottom boundary layer flow. Journal of Geophysical Research, 87(C6), 4148-4154.
Journal Title
Journal Volume
  • 87
Déclaration de droits
Funding Statement (additional comments about funding)
  • National Science Foundation grant OCE-7918904.
Publisher
Language
Replaces

Des relations

Parents:

This work has no parents.

Articles

La vignette Titre Date de téléchargement Visibilité actes
file details Chriss_and_Caldwell_JGR_1982.pdf 2017-07-24 Public Télécharger