Is there any basis for chosing the h/deltaP (where h and deltaP are respectively the smoothing length and particle spacing ) ratio in SPH. Is it purely based on some numerical experiment?
I am trying simple sph model in which tool roate 1000 rpm and pluge down 2 e-3 m/sec velocity for very small end time 1 e-3 sec in ls-dyna.
But i am getting at 0 time step itself all sph nodes shoots and moreover tool flys ..I want to see some movement of toolin work ..can you tell me what i am overlooking ?
sorry , i couldn't edit the above comment , then this is true .The smoothed length h usually was given a value between dx and 1.5*dx, which dx means the distance of nearby particle.
flush I/O problem if end time is more than 1 sec
hello Amit ,
I am trying simple sph model in which tool roate 1000 rpm and pluge down 2 e-3 m/sec velocity for very small end time 1 e-3 sec in ls-dyna.
But i am getting at 0 time step itself all sph nodes shoots and moreover tool flys ..I want to see some movement of toolin work ..can you tell me what i am overlooking ?
thanks in advance
A suggestion
The smoothed length h usually was given a value between 3*dx and 4.5*dx, which dx means the distance of nearby particle.
Correct
sorry , i couldn't edit the above comment , then this is true .The smoothed length h usually was given a value between dx and 1.5*dx, which dx means the distance of nearby particle.