A simple linearized theory for the problem of a two-dimensional thin supercavitating hydrofoil in nonuniform motion is developed. General expressions are presented for frequency-response function, lift and moment coefficients. It is found that, in general, the lift and moment vary appreciably with the depth of submersion. At a depth-chord ratio of unity (typical value), the nonsteady characteristics are not well approximated by either the deeply submerged or surfaced hydrofoil results. Detailed numerical results for the cases of a rigid foil performing heaving oscillations or entering the sinusoidal gust, based on digital-machine calculation, are given.
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March 01 1965
Fully Cavitating Hydrofoils in Nonuniform Motion Under a Free Surface
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Hsu, C. C.. "Fully Cavitating Hydrofoils in Nonuniform Motion Under a Free Surface." J Ship Res 9 (1965): 46–55. doi: https://doi.org/10.5957/jsr.19184.108.40.206
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