Wave diffraction coefficient analysis method for open type double jetty

The invention relates to a wave diffraction coefficient analysis method for an open type double-jetty. The method comprises the following steps: S1, establishing an open type double-jetty model under a Cartesian coordinate system; s2, based on the velocity potential function and the linearized free surface boundary condition, obtaining a Helmholtz equation about a complex function in the velocity potential function; carrying out boundary value solving on the Helmholtz equation by adopting Schwarz-Christoffel conformal transformation and a Green function method, so as to obtain a wave diffraction coefficient model of the open type double jetty; and S3, carrying out numerical solution on the wave diffraction coefficient model by adopting a method to obtain a wave diffraction coefficient analytic value. Compared with the prior art, the open type double-jetty wave diffraction method fills the blank of the open type double-jetty wave diffraction theory and has the advantage of being high in analysis and prediction