ENGINEERS
HONORED BY MARINE SOCIETY FOR WAKE WASH INVESTIGATION
The Society of
Naval Architects and Marine Engineers (SNAME), has honored four
Seattle area engineers with the prestigious Vice Admiral Edward L.
Cochrane Award for the outstanding technical paper of the past year.
In its annual convention held in Vancouver British Columbia from 4-8
October, the Society recognized the work of Stanley Stumbo and Larry
Elliott, both of Washington State Ferries, Kenneth Fox a naval
architect from Bainbridge Island Washington, and Dr. Frank Dvorak of
Analytical Methods Inc. in Renton, Washington for their combined
work in the investigation of wake wash. A peer review of all
technical papers presented to the Society, nation wide, in 1999,
chose their paper, entitled The Prediction, Measurement, and
Analysis of Wake Wash from Marine Vessels as the best paper
presented to the society in 1999. The paper described the work which
they have collectively performed to establish an "acceptable
level " wash criteria, the prediction of wash using
computational fluid dynamics, techniques used to measure and analyze
wake wash, and the agreement achieved between predictions and
measurements. Several of the vessels, which they analyzed in the
paper, are ferries currently in service in the Bay area.
With the increase
in high-speed ferry traffic world wide, wake wash has been
recognized as an environmental problem and it is receiving increased
attention from both coastal engineers and naval architects. The
engineers honored by SNAME are continuing their investigations and
will present further work at a meeting of the Royal Institution of
Naval Architects in London next month. Their current investigations
concern the behavior of wash produced in shallow water, as compared
to deep-water effects.
