Laboratory Effects in Beach Studies. Volume III. Movable-Bed Experiments with H sub o/L sub o = 0.021 (1971).
Abstract
Two movable-bed experiments were conducted in 6- and 10-foot-wide wave tanks for 375 and 335 hours, respectively, with a wave period of 1.90 seconds and a generated wave height of 0.36 foot. Significant lateral variations occurred in the profile development rate and profile shape in the 10-foot tank, which did not occur in the 6-foot tank, indicating that tank width can affect the study of littoral processes in movable-bed experiments. Wave reflection from the movable-bed profile varied considerably as the profile in both wave tanks developed from an initial planar (0.10) slope to one closer to equilibrium. The reflection coefficient, K sub R, varied from 0.08 to 0.30 in the 6-foot tank and from 0.03 to 0.16 in the 10-foot tank. The variations in K sub R can be related qualitatively to profile development. Even with the fine-grained, well-sorted sediment used, a measurable sorting occurred as the finer material was eroded and deposited offshore. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1977
- Accession Number
- ADA049871
Entities
People
- Charles B. Chesnutt
- Robert P. Stafford
Organizations
- Coastal Engineering Research Center