The purpose of this study was to ascertain the potential erosion
impacts associated with ship movements in confined waters. The flow
associated with a ship passage can be separated accordingly: (1) the
propeller wake, (2) flow about the hull, and (3) associated waves.
Each of these areas has been analyzed to determine their respective
potential for causing channel erosion.
Extensive field work was planned to determine the magnitude of
the associated flows in a channel due to a shill) passage, but numerous
problems developed that limited the amount of useful data obtained.
As an alternative approach, use was made of data presented by other
authors concerning channel flow effects caused by a ship passage.
SOGREAH test results regarding Kiel Canal flows and ship related disturbances
(Wasser-und Schiffahrtsdirektion Kiel, 1966) appear to be
particularly applicable for the Coos Bay shipping channel because the
channel dimensions and ship sizes in the two areas are approximately
equal From the Coos Bay field work that was completed and from the
extrapolations of the SOGREAH test results, the total erosion caused
by ship traffic in Coos Bay was estimated to be insignificant compared
to the natural erosion and deposition that takes place in the estuary. / Graduation date: 1977 / Best scan available. Original is a black and white photocopy.
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28333 |
| Date | 10 June 1976 |
| Creators | Downs, Richard Allen |
| Contributors | Slotta, Larry S. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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