Skip to main content Accessibility help

A theory for wave-power absorption by oscillating bodies

  • D. V. Evans (a1)


A theory is given for predicting the absorption of the power in an incident sinusoidal wave train by means of a damped, oscillating, partly or completely submerged body. General expressions for the efficiency of wave absorption when the body oscillates in one or, in some cases, two modes are given. It is shown that 100% efficiency is possible in some cases. Curves describing the variation of efficiency and amplitude of the body with wavenumber for various bodies are presented.



Hide All
Budal, K. & Falnes, J. 1975 A resonant point absorber of ocean-wave power. Nature, 256, 478479.
Frank, W. 1967 Oscillation of cylinders on or below the free surface of deep fluids. N.S.R.D.C. Rep. no. 2375.
Haskind, M. D. 1957 The exciting forces and wetting of ships in waves. Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, 7, 6579. (English trans. David Taylor Model Basin Tram. no. 307.)
Havelock, T. H. 1955 Waves due to a floating sphere making periodic heaving oscillations. Proc. Roy. Soc. A 231, 17.
Ktik, J. 1963 Damping and inertia coefficients for a rolling or swaying vertical strip. J. Ship Res. 7, 1923.
Kotik, J. & Manculis, V. 1962 On the Kramers-Kronig relations for ship motions. Int. Shipbldg Prog. 9, 310.
Newman, J. N. 1962 The exciting forces on fixed bodies in waves. J. Ship Reg. 6, 1017.
Newman, J. N. 1975 Interaction of waves with two-dimensional obstacles: a relation between the radiation and scattering problems. J. Fluid Mech. 71 273282.
Ogilvie, T. F. 1963 First-and second-order forces on a cylinder submerged under a free surface. J. Pluid Mech. 16, 451472.
Salter, S. H. 1974 Wave power. Nature, 249, 720724.
Ursell, F. 1948 On the waves due to the rolling of a ship. Quart. J. Mech. Appl. Math. 1, 246252.
MathJax is a JavaScript display engine for mathematics. For more information see

A theory for wave-power absorption by oscillating bodies

  • D. V. Evans (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed