NORSK KINESISK INGENIØRFORENING
挪威华人工程师协会
Norsk Kinesisk Ingeniørforening (NKIF) is a non-profit, professional association and dedicated to providing professional networking opportunities and promoting technology application. It is founded in 2014 and is open to all professions in Oil & Gas, Maritime and other relevant industries.
Second-order diffraction and radiation of a floating body with small forward speed
Shao Y.L. and Faltinsen O.M.
J. Offshore Mech. Arct. Eng., Volume 135, Issue 1.
Abstract
The formulation of the second-order wave-current-body problem in the inertial coordinate system involves higher-order derivatives in the body boundary condition. A new method taking advantage of the body-fixed coordinate system in the near field is presented to avoid the calculation of higher-order derivatives in the body boundary condition. The new method has an advantage over the traditional method when the body surface has a sharp corner or high curvature. The nonlinear wave diffraction and forced oscillation of floating bodies are studied up to second order in wave slope. A small forward speed is taken into account. The results of the new method are compared with that of the traditional method based on a formulation in the inertial coordinate system. When the traditional method applies, good agreement has been obtained.
http://offshoremechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1662568