Electrostatic interactions in dissipative particle dynamics (DPD)

Dear Lammps’ Developes and Users,

I want to simulate some phenomenons, for example, electrophoresis - the movement of a charged particle immersed in electrolyte solution under the presence of external electric field. And I read some papers talking about electrostatic interaction incorporated in DPD method.

http://jcp.aip.org/resource/1/jcpsa6/v118/i24/p11265_s1?isAuthorized=no

I have two questions:

  1. Do we have electrostatic interaction incorporated in DPD in Lammps?

  2. If not, Could I use pair_style hybrid/overlay (DPD and coul/debye)? Do you have any additional advices?

Best regards,

XC

Dear Lammps' Developes and Users,

I want to simulate some phenomenons, for example, electrophoresis - the
movement of a charged particle immersed in electrolyte solution under the
presence of external electric field. And I read some papers talking about
electrostatic interaction incorporated in DPD method.

http://jcp.aip.org/resource/1/jcpsa6/v118/i24/p11265_s1?isAuthorized=no

I have two questions:
1. Do we have electrostatic interaction incorporated in DPD in Lammps?

no.

2. If not, Could I use pair_style hybrid/overlay (DPD and coul/debye)? Do
you have any additional advices?

whether using hybrid/overlay is a good model or not is up to you to decide.
if the paper that you want to follow says that electrostatics can be added
to DPD by simply adding a screened coulomb, then this is how you can
do it. if the paper says something similar, but different, then it is not.

in any case, you'll have to do tests to verify that the model you choose
is able to represent the properties that you want to be represented and
model the compounds that you want to model as well as you need.
you can't write in your paper "some random dude on the lammps mailing
list said it was ok to do this", but add proper justification.

cheers,
    axel.