Research on Second-Order Low Frequency Wave Forces on Floating Circular Cylinder in Shallow Water

Abstract

The present paper is concerned with the development of retional method for calculating second-order low frequency wave forces on floating structures in shallow water. The boundary value problem for the slow potential is formulated by the multiple scale perturbation method and is solved numerically by a boundary inteqral equation method. The numerical results of second-order low frequency waves on a floating circular cylinder are compared with the analytical results, so that the accuracy of the numerical method is comfirmed. Further, the numerical results are compared with the experimental results for the case wtere the envelope of the incident wave train is a sine function and the usefuiness of the present method are discussed.