Issue: Particle separation in scaled simulation of the Relaxation zone with regular wave
Hi guys,
I am trying to scale the domain of the example case wavecoupling\02RZRegularWaves
but the simulation results does not have waves, rather I see a particle separation at the relaxation zone.
Can anyone tell how to resolve this issue. ( I am new to the relaxation zone method !!!)
Comments
Hi @C_Kesanapalli
At a glance, the wave condition you are trying to model is rather extreme, a 30 metre wave with a 2 second period. The wave steepness far exceeds that of a breaking wave. I assume the model will struggle to generate a wave that is technically breaking, so my suggestion would be to alter your wave conditions.
You should also have a look at designing the relaxation zone dimensions and function values based on your simulation parameters, it is well documented in Altomare et al. (2018) Improved relaxation zone method in SPH-based model for coastal engineering applications
Hope this helps!
Hi @C_Kesanapalli
The wave conditions you are trying to generate make no physical sense. The wave is far too steep and not realistic at all. A part from that, I agrre with @atish_d, to check properly the procedure to follow for a setup of the RX in Altomare et al. (2018).
Regards
@atish_d and @iarba27 Thanks for the reply
I tried waves with proper steepness
wave height of 0.16 m and time period 1.6 sec,
wave height of 0.5 m and time period 3.0 sec
wave height of 1 m and time period 4.5 sec
but still I am having the same issue - particle separation.
The RZ parameters that I see on DualSPHysics are
width of RZ - which I scaled accordingly
I tried
psi = 0.3, beta = 3
psi = 0.5, beta = 5
psi = 0.9, beta = 1
but I still have the particle separation