As part of the conceptual and detailed design phases leading to the construction of the LOw
Noise Large CAvitation Tunnel (LOCAT) at the Maritime and Ocean Engineering and Research
Institute (MOERI) of the Republic of Korea, an experimental analysis and verification of the
design was carried out at the St. Anthony Falls Laboratory (SAFL). This report describes
pressure and velocity measurements performed at a 1:6 scale physical model at SAFL using air
as a working fluid.
The physical model is used to check the overall flow quality, including measurements of pump
inflow, and to investigate contraction, diffuser and turning vane performance. High spatial
resolution mean velocity and turbulence profiles were taken at 44 locations in the model, and
mean pressure was measured at 183 locations. Here these results are summarized, and
recommendations are made based on the experimental observations.
The results of the physical model can be used for comparison to numerical simulations at model
Reynolds number, which can then be extrapolated to prototype Reynolds numbers to predict the
performance of the full scale LOCAT.
Maritime and Ocean Engineering and Research Institute, Republic of Korea
Wosnik, Martin; Arndt, Roger.
Testing of a 1:6 Scale Physical Model of the Large, Low-Noise Cavitation Tunnel (LOCAT).
St. Anthony Falls Laboratory.
Retrieved from the University of Minnesota Digital Conservancy,
Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.