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Flow resistance under conditions of intense gravel transport

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John Pitlick, 1992, Flow resistance under conditions of intense gravel transport: Water Resources Research, v. 28, iss. 3.

Summary

A study of flow resistance was undertaken in a channelized reach of the North Fork Toutle River, downstream of Mount St. Helens, Washington. Hydraulic and sediment transport data were collected in flows with velocities up to 3 m/s and shear stresses up to 7 times the critical value needed for bed load transport. Details of the flow structure as revealed in vertical velocity profiles indicate that weak bed load transport over a plane gravel bed has little effect on flow resistance. The plane gravel bed persists up to stresses ∼3 times critical, at which point, irregular bed forms appear. Bed forms greatly increase flow resistance and cause velocity profiles to become distorted. The latter arises as an effect of flows becoming depth-limited [...]

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Harvested on Thu Jun 30 04:19:44 MDT 2016 from MODS XML Service

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Type Scheme Key
local-index unknown 70171414
local-pk unknown 70171414
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1029/91WR02932
series unknown Water Resources Research

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journalWater Resources Research
parts
typevolume
value28
typeissue
value3
languageEnglish
citationTypeArticle

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