A 1:14 scale model of the Large Oavitation Ohannel (LOO) was built
and tested by Voith Hydro, Inc. [l]. The velocity profiles on the central
plane of symmetry was surveyed using Pitot tubes at stations P1 to P7 as
shown in Fig. 1. Later, additional measurements were made with LVD at
stations Ll to L4 . These measurements indicated the existence of
unusually thick boundary layers on the top wall at the test section and poor
flow quality in the diffuser when the honeycomb for turbulence management
was present. Some improvements on mean velocity profiles were found
possible by either completely or partially removing the honeycomb.
David Taylor Ships Research and Development Center
U. S. Navy
Contract No. N153388 M0602
Song, Charles C. S.; Yuan, Mingshun; Wang, Qun; He, Jianming.
Data Analysis and Numerical Modeling of Flow in the 1:14 Scale LCC Model.
St. Anthony Falls Hydraulic Laboratory.
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