Izvorni znanstveni članak
A simple nonlinear model of a generic axisymmetric wave energy converter
Lawrence J. Crane
; Institute for Numerical Computation and Analysis (INCA), Dublin, Ireland
John J.H. Miller
; Institute for Numerical Computation and Analysis (INCA), Dublin, Ireland
Sažetak
The aim of this work is to develop a simple nonlinear model of a wave energy converter (WEC) for capturing power from ocean waves and converting it into electrical power. A generic axisymmetric device is considered, which consists of a vertical circular cylinder surrounded by a circular annulus. The nonlinear system of equations of motion of this generic WEC are derived; these include the nonlinear term arising from viscous drag due to boundary layer separation. The expressions for radiation damping and added mass are determined by dimensional analysis. These equations are then solved numerically and the results are displayed graphically in a number of figures. Consideration of these graphs leads to conclusions that should be taken into account by the design engineer.
Ključne riječi
ocean wave energy device; mathematical model; numerical model; nonlinear system; dimensional analysis; added mass; radiation damping; power take-off; viscous drag
Hrčak ID:
83082
URI
Datum izdavanja:
12.6.2012.
Posjeta: 1.465 *