Re: [ESPResSo-users] Friction coefficient for virtual particle

[Ulf Schiller]

Nairhita,

You may want to check out the raspberry model. Depending on what you 
intend to study, surface particles may not be sufficient to model a 
rigid object accurately.

https://urldefense.proofpoint.com/v2/url?u=http-3A__dx.doi.org_10.1063_1.4928502&d=DwICaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=vo_59UgGQLPOFUG9XRo42qkxDB-wQV2VznPwVSffS30&m=S1g_nMatEgfgAiw6Q_r5Wwbl04OOfH28VJUDmwmsIB4&s=ECs5SHCE_81JvCH-vUOF3NlL11IY-l-BUV12wZB97KY&e= 
https://urldefense.proofpoint.com/v2/url?u=http-3A__dx.doi.org_10.1063_1.4928503&d=DwICaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=vo_59UgGQLPOFUG9XRo42qkxDB-wQV2VznPwVSffS30&m=S1g_nMatEgfgAiw6Q_r5Wwbl04OOfH28VJUDmwmsIB4&s=aTTSSmPsLRfeuS5i5rXjAhmHgeJpuKw2Brfo-YBLlO8&e= 

Best,
Ulf

On 06/02/2017 06:47 AM, Nairhita Samanta wrote:
> Hi all!
>
> I wanted to ask if I am simulating a rigid spherical symmetric structure 
> made of virtual particles on the surface of a real particle, how do I 
> calculate the gamma (friction coefficient). Should I consider the radius 
> of the central particle or the the radius of the rigid spherical 
> structure. I am asking this because if in addition to this rigid 
> structure I have simple particles as well, the viscosity of the systems 
> should be same for all of them and I should  calculate gamma accordingly.
>
> Regards,
> Nairhita

--
Dr. Ulf D. Schiller
Assistant Professor, Department of Materials Science and Engineering
Faculty Scholar, School of Health Research
Clemson University
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