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At this point, the pressure field around the non-cavitating or cavitating hydrofoil must be calculated.
For example, an airplane wing and a hydrofoil can be viewed as analogous because both generate lift using flow over their surfaces.
The main topics of the paper are: cavitation inception in either regime, hydrofoil saturation and the sweeping away of a cavity by bubbles.
Experiments on two-dimensional cavitating hydrofoils show important differences in global behaviour of flows according to the population of air nuclei conveyed by the liquid.
Avellan presented results of cavitation at the leading edge of a hydrofoil placed at an incidence angle with respect to the oncoming high-speed flow.
The dispersion of the nuclei is not fully achieved at the test section entry and both cavitating regimes can be juxtaposed on the hydrofoil upper side (figure 4, plate 1).
Close interest is taken in the possible advantages of introducing unconventional craft into the future fleet mixes—hovercraft, hydrofoils and fast patrol boats.
I remember the excitement not long ago at the development of the hovercraft and the hydrofoil.
It has its platform over the waves, and the ride comfort of the hydrofoil may turn out to be superior to that of the hovercraft.
Are we producing fast anti-submarine vessels—perhaps hydrofoils or hovercraft?
I have no time to deal with hydrofoils and hovercraft, but there have been important developments in that respect.
Then, again, there is the hydrofoil craft, which has a very high speed and which might be very suitable for anti-submarine work.
I am particularly interested in the hydrofoil, because a constituent of mine has made a number of inventions in connection with its development.
The hydrofoil operates on the basis of a ship with a formation which causes the vessel to rise up on top of the sea.
Is it not time that we heard something about this hydrofoil report?
