Dear Rob,

I have provided the 6cm wave height (third order Stoke's theory) at the inlet, but the wave is not starting from the inlet


Meshing details:-

I have given face sizing for the structure and didn't use inflation.

Nodes:- 437302

Elements:- 2330736

Element Quality: 0.19651 Min- 0.99992 Max

 Aspect ratio of mesh: 9.9957 Max -- 1.1656 Min


Thank you.