I would like to have some help with my study case on Fluent. I'm simulating wave propagation in a 2D wave flume model using VOF with open channel model, generating Stokes second order waves with H = 5 cm, T = 0.86 s (L = 1.07 m) and a water depth of 27.5 cm. I'm using a mesh refinement on the water surface envelope with 80 CPL-X direction, 20 CPH - Y direction and a time-step of T/200. The CFL condition is around 0.6.
The problem is that the waves are losing energy (height) during the propagation phenomena in the domain. I'm analyzing the surface elevation at 0.5 m, 1 m, 2 m, 3 m and 6 m from the inlet. The results are presented in the attached file.
Thank you in advance,