... leading-edge sheet cavitation might be expected. Composite models (1 m chord by 0.525 m span) comprising a perfect and defective section with a leading-edge defect were tested in the cavitation tunnel with a 1 m x 1 m cross-section measurement section. Cavitation inception was observed visually on models...

...NUMERICAL PROPELLER TUNNEL Jin Keun Choi; (SM) and Spyros A. Kinnas~ (AM) ABSTRACT The flow of a propeller inside of a tunnel is addressed. A numerical method is developed in which the flow inside the tunnel is treated via a potential based panel method. First, the method is applied to the two...

... Subcavitating hydrofoil sections with thickened trailing edges offer potential advantages of greater structural rigidity and delayed cavitation inception. In order to evaluate this concept two foils were tested in the M.I. T. water tunnel, one with a relatively thick trailing edge (2% of chord...

... Measurements of pressure fluctuations and observations of propeller cavitation were carried out aboard the single-screw container ship “Hongkong Express: In the present report, the results obtained are compared with the corresponding results from tests in the medium sized cavitation tunnel...

... cavitation tunnel and towing tank tests. As a result, a number of inherent advantages of the system over conventional alternatives can be claimed. In particular, the noncavitating high speed capability must be mentioned in this context. High power density and a low propeller generated noise level...

..., from which it can be seen that there is an unacceptably high wake peak at the top of the propeller aperture. Since in this case the use of a partial tunnel was unacceptable to the Owners due to the likelihood of the fishing nets becoming trapped between the prope'ller blades and tunnel surface...