Hi Guys
I have a situation where I need to measure the mass of particles which are divided into two types, each type has a range of particles.
Below is the code which I developed. I have made a group called "large" which consists of type 1.
When I try and print out the mass of the type 1 particles and resulting csv file only has 0 values.
I do get results when changing the "large" to "all" when measuring the mass, however this does not help me.
Can someone please assist in explaining where I went wrong.
fix pts1 all particletemplate/sphere 15485863 atom_type 1 density constant 2800 radius constant 0.03175
fix pts2 all particletemplate/sphere 15485867 atom_type 1 density constant 2800 radius constant 0.0254
fix pts3 all particletemplate/sphere 32452843 atom_type 1 density constant 2800 radius constant 0.019
fix pts4 all particletemplate/sphere 32452867 atom_type 1 density constant 2800 radius constant 0.0127
fix pts5 all particletemplate/sphere 49979687 atom_type 2 density constant 2800 radius constant 0.00953
fix pts6 all particletemplate/sphere 49979693 atom_type 2 density constant 2800 radius constant 0.00635
fix pts7 all particletemplate/sphere 67867967 atom_type 2 density constant 2800 radius constant 0.00478
fix pts8 all particletemplate/sphere 67867979 atom_type 2 density constant 2800 radius constant 0.00335
fix pts9 all particletemplate/sphere 86028121 atom_type 2 density constant 2800 radius constant 0.00239
group large type 1
region undersizeblock block 0 3 -2 6 -2 6 units box
variable undersizemass equal mass(large,undersizeblock)
fix output all print 1000 "${undersizemass}" screen no file regionmeaurements.csv title "Undersize"
mschramm | Wed, 04/06/2022 - 22:14
Particles must be in the simulation first
Hello,
If the above is all that you have, then no particles have been inserted into the group large since you have not inserted particle into your domain.
There should be at least one run command to make the group valid.
Mishal | Thu, 04/07/2022 - 08:36
Thanks, I figured it out
Thanks, I figured it out yesterday, I am using multiple runs to capture data at specific points in time.
CiccyC0001 | Thu, 02/02/2023 - 17:00
Mishal
Hello, I have the same problem, I need to output the quality of a specific group over time, could you tell me how you do it? I would be very thankful！