PARABOLIC WAVE COMPUTATIONS IN NON-ORTHOGONAL COORDINATE SYSTEMS

A recent development of a parabolic equation method for wave prop­ agation in a non-orthogonal coordinate system is reviewed. A transformation of the full governing equation prior to development of any approximation leads to a model whose results stand in closer agreement to laboratory data for a case of waves propagating into a breakwater harbor. The effect of amplitude dispersion on pre­ dicted wave height is studied and is also seen to be important for the case consid­ ered here. Reflection of obliquely incident waves by a vertical wall is also consid­ ered.