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ARS Home » Southeast Area » Oxford, Mississippi » National Sedimentation Laboratory » Watershed Physical Processes Research » Research » Publications at this Location » Publication #131695
Title: MECHANICS OF LOG MOVEMENT IN STREAMS: EFFECTS OF PROPAGATING AND STANDING WAVES

Author
item Alonso, Carlos

Submitted to: American Geophysical Union
Publication Type: Abstract Only
Publication Acceptance Date: 10/15/2001
Publication Date: 12/13/2001
Citation: Alonso, C.V. 2001. Mechanics of log movement in streams: effects of propagating and standing waves. American Geophysical Union. Abstracts, v. 82, p. F375.

Interpretive Summary: IS not required for Abstract.

Technical Abstract: It is now recognized that large woody debris (LWD) in streams and rivers can provide important benefits to aquatic and riparian ecology and habitat while locally controlling hydraulic grade. Consequently, river engineers are considering the use of LWD as an integral component of stream stabilization and river restoration projects. The complex interaction of multiple logs among themselves and with the stream environs determines in the end the overall behavior of LWD. However, unraveling the dynamics of that interaction must start with a correct specification of the equations of motion governing the movement of individuals logs. This paper reports analytical and experimental results from laboratory studies on drag and inertial forces exerted on cylindrical logs by flowing water.