Regarding energy scales in simulation

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1

Dear All

I have managed to simulate a system of monodisperse hard spheres in a fluid using implicit FLD method as mentioned in the review paper “Particle dynamics modeling methods for colloid suspensions” by Bolintineanu et al.

I have reproduced the results mentioned in the paper. I am using a hybrid potential (FLD+brownian+colloid) my questions are -

  1. If I were to place a dipole at the centre of these spheres then would my energy scale change and if so how.

  2. if i place dipoles at the center then do I have to use some different kind of potential function as well.

  3. Is there a paper that has done lammps simulation of dielectrorheological simulation and can somebody direct me to it I havent been successful in finding any such paper.

Regards
Anurag

2

Dear All

I have managed to simulate a system of monodisperse hard spheres in a fluid
using implicit FLD method as mentioned in the review paper "Particle
dynamics modeling methods for colloid suspensions" by Bolintineanu et al.

I have reproduced the results mentioned in the paper. I am using a hybrid
potential (FLD+brownian+colloid) my questions are -

please note, that all of your questions below are not really specific
to LAMMPS but to the model you are using in general, and thus mostly
considered off-topic for this mailing list.

1) If I were to place a dipole at the centre of these spheres then would my
energy scale change and if so how.

what do you mean by "energy scale change" in this context?
if you add a term to your potential function, your energy will most
certainly change.
and since it is you that is changing the potential function, you also
have complete control over how.

2) if i place dipoles at the center then do I have to use some different
kind of potential function as well.

obviously. see my answer from above.

3) Is there a paper that has done lammps simulation of dielectrorheological
simulation and can somebody direct me to it I havent been successful
in finding any such paper.

no comment.

axel.

3

Unless you have invented a brand-new technology, there is nothing call dielectrorheological. You may be referring to electrorheological technology which has been known for decades and which has been the subject of many simulations. A simple search on electrorheological simulation yields:

  1. Computer simulation of an electrorheological fluid - Science Direct

http://www.sciencedirect.com/science/article/pii/037702579090007XKeywords: computer simulation; electrorheology; yield stress 1. Introduction A fluid is described as electrorheological (ER) if it responds to large ( 106 V m-1) …

  1. Simulation of structures and their rheological … - Science Direct

http://www.sciencedirect.com/science/article/pii/S037843710200599XThe viscosity of electrorheological (ER) fluids can be changed drastically by imposing an external electric field. We study the relation between microstructures .

  1. Modeling, Simulation, and Control of Electrorheological … - CiteSeerX

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.147.1352&rep=rep1&type=pdfin materialorientierten Prozessen und intelligenten Systemen. Modeling, Simulation, and Control of. Electrorheological Fluid Devices. Hoppe, Ronald H. W. …

  1. Dynamic simulation and performance of an electro-rheological …

http://iopscience.iop.org/article/10.1088/0964-1726/8/5/310/pdfDynamic simulation and performance of an electro-rheological clutch based reciprocating mechanism. View the table of contents for this issue, or go to the …

  1. Dynamic simulation of an electrorheological fluid: The Journal of …

http://scitation.aip.org/content/aip/journal/jcp/96/3/10.1063/1.462070A molecular‐dynamics‐like method is presented for the simulation of a suspension of … particles in a nonconductive solvent forming an electrorheological fluid.

  1. Dynamic simulation of an electrorheological fluid - Semantic Scholar

https://pdfs.semanticscholar.org/080e/ca1015a293a5be201e1df637872810b9df5f.pdfing an electrorheological fluid. The simulation accurately accounts for both hydrodynamic forces due to an imposed shear flow and electrostatic forces due to the …

  1. Simulation of structure formation in an electrorheological fluid

http://link.aps.org/pdf/10.1103/PhysRevLett.73.205Jul 4, 1994 … Simulation of Structure Formation in an Electrorheological Fluid. R. Tao and QiJiang. Department ofPhysics, Southern illinois University, …

  1. Modelling, Simulation, and Control of Electrorheological Fluid Devices

http://link.springer.com/chapter/10.1007%2F978-3-642-59709-1_17Cite this paper as: Hoppe R.H.W., Mazurkevitch G., Rettig U., von Stryk O. (2000) Modelling, Simulation, and Control of Electrorheological Fluid Devices.

  1. Particle-level Simulations

http://homepages.cae.wisc.edu/~klingen/group/ermrsims.htmParticle-level Simulation of MR and ER Suspensions … Shear of Electrorheological Suspensions," M. Parthasarathy and D. J. Klingenberg, J. Non -Newt.

  1. Computer simulation of structures and rheological properties of …

http://link.aps.org/pdf/10.1103/PhysRevE.53.3823Computer simulation of structures and rheological properties of electrorheological fluids. H. X. Guo, Z. H. Mai, and H. H. Tian. Institute of Physics, Chinese …

Jim