Relating artificial viscosity to DP
Is there a way to relate artificial viscosity to particle spacing? Presently I am using the default value of 0.01 and attempted the problem with different dp (ranging from 0.005 to 0.01).
I am attempting a dam break problem on a slope and all the literature I referred to says that I might have to tune the values of alpha with respect to the dp. Can someone please shed some light?