Diffracted Wave Elevation Diffracted wave elevation is the wave elevation caused by the diffraction of incident waves around a body. The diffracted wave elevation is imported from Wadam or other supported boundary element code. This diffracted wave model can only be used in a fixed field point. From SIMA 5.2, it also possible to define a Disturbed Wave Field, which allows diffracted wave kinematics to be applied in points moving inside a defined box-shaped region around a diffractor body. The new functinality should be preferred for most use cases. First Order Wave Force Transfer Function Diffracted Wave Velocity