Reply To: Breaking water waves in Fluent

[Seyyed Mahmoud Mousavi]

I am trying to simulate the linear regular wave propagation (H=0.05 m and Wave length = 1.62 m) in a 2D open channel flow (0.5*10 m dimensions) with a fine mesh of 5mm*1cm in all the domain. I checked on the VOF; then the BCs are set as velocity inlet Open channel, Pressure outlet open channel, bottom as a wall, and free surface as pressure outlet. I can see the wave propagation only close to the inlet zone and the wave train is damped after something like one or a maximum of two wavelengths. Afterward, the free surface remains almost still (not completely). Why is it like this? Why can the generated waves not propagate through the domain to the outlet side?

What other settings or details should I provide here?

 

Many thanks!