Dear Steve,
I use atom_style hybrid bond dpd in lammps input script. I have 3000 particles.2700 type1 beads and 300 type2. there is no bond between type 1 particles. And type (or molecule id is 0) and bond is like this(in bonds section of data file ).
Bonds
1 1 2701 2702
2 1 2702 2703
3 1 2704 2705
4 1 2705 2706
Will i have a spring force between type 1 particle or type 1 and type 2
?
You'll just have whatever bonds you specify. LAMMPS doesn't care
what type the particles are that are in the bond.
Steve