Flume Experiments on Alternate Bar Formation

by Hai-Yain Chang, Assoc. Prof. of Engrg.; San Diego State Coll., San Diego, CA; formerly, Grad. Student, Colorado State Univ., Fort Collins, CO,
Daryl B. Simons, (M.ASCE), Prof. and Assoc. Dean for Engrg. Res.; Coll. of Engrg., Colorado State Univ., Fort Collins, CO,
David A. Woolhiser, (M.ASCE), Res. Hydr. Engr.; USDA, Fort Collins, CO,

Serial Information: Journal of the Waterways, Harbors and Coastal Engineering Division, 1971, Vol. 97, Issue 1, Pg. 155-165

Document Type: Journal Paper


A series of laboratory experiments were performed to determine relationships between alternate bar geometry, bed material properties and hydraulic parameters. The experiments were conducted in a recirculating laboratory flume 100 ft long and 3 ft wide. The flume had smooth rigid walls and a movable bed. Sand, expanded clay aggregate and plastic pellets were used as the bed materials. A linear relationship existed between the logarithm of the dimensionless parameter λS/D and the Froude number, where λ is the meandering wave length, S is the slope, and D is the mean depth.

Subject Headings: Bed materials | Material properties | Flumes | Hydraulic properties | Parameters (statistics) | Clays | Geometrics | Walls

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