a,ai amplitude of incident wave
ar amplitude of reflected wave
at amplitude of transmitted wave
AW water surface area in air chamber OWC=BW
B breadth of air chamber
c hydrostatic restoring force coefficient=gAW
D load damping coefficient of OWC D=DpAW
fk0h 2 cosh2k0h / 2k0h+sinh2k0h
g gravitational acceleration
h water depth
k0 wave number of incident wave
K wave number at infinite water depth=2 /g
N number of terms
p amplitude of pressure in air chamber
R opening ratio of orifice or air chamber
t time
Wi incident regular wave power
WOWC output of OWC in regular water wave
z˙ amplitude of heaving velocity of OWC
ij Kronecker’s delta= 1 i=j
0 ij
x, z amplitude of oscillatory velocity potential
x, z , t velocity potential=Rex, zeit
OWC efficiency of OWC for regular wave
wavelength
amplitude of pitching angle of floating body
water density
a air density
amplitude of surging of floating body
angular frequency
amplitude of heaving displacement of floating
body
Superscripts
conjugate complex number
· d/ dt
·· d2 / dt2
I–V domain number
Subscripts
c center of buoyancy
g center of gravity
1 surging of floating body
2 heaving of floating body
3 pitching of floating body
4 diffraction of floating body
5 heaving of OWC in domain II
i–iv basic formula number