Coefficient of Sound

amir

Hi
What is a good choice of Coefficient of Sound for wave propagation problem?
Regards!

Alex

For wave propagation:
coef_h=1.2
visco=0.01
coef_sound=20 is ok

Regards

amir

Thanks Alex!
In one case, I set coef_h=1.2, but particle penetration to the boundary (beach) occurred.
The problem was removed by setting coef_h=1.1

Alex

Do not use shepard filter or deltaSPH with wave propagation and you will avoid particle penetration.

Alex

amir

Thanks again!
If we do Not use shepard filter or deltaSPH, the fluctuation of pressure (e.g. computing force for an object) will make trouble.

Alex

Ok, then use deltaSPH but no shepard filter.

Regards