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Re: [ESPResSo-users] Modelling Fibres in Fluid

From: Omri Menashe
Subject: Re: [ESPResSo-users] Modelling Fibres in Fluid
Date: Mon, 14 Jan 2019 15:15:52 +0000

Hi Ivan,


Thank you for responding to my email, and I appreciate the advice on using a mesh model. I will definitely try and get a hold of your book to read more deeply into mesh model development. I did follow the reference line and came across your paper: An ESPResSo implementation of elastic objects immersed in a fluid.  


Initially, I was thinking of trying to use a bead-chain approach to model the fibres using the FENE bonding (spring connection). My initial assumption is that the Mesh approach you’ve described will be more computationally expensive but also give more accurate results? Is this correct?


I’m wondering if you’ve come across a method of modelling meshes in a 3D modeler (ie. Rhino3D) and then exporting that as an output so that it could be used in ESPResSo?


Thanks for your time.

All the best,





From: Ivan Cimrak <address@hidden>
Sent: January 14, 2019 4:38 AM
To: Omri Menashe <address@hidden>; address@hidden
Subject: Re: [ESPResSo-users] Modelling Fibres in Fluid


Dear Omri,


Regarding the use of the module Object-in-fluid to model fibres, I think it is indeed possible. In this case, the fibres needs to be considered as tubes with some thickness, discretized by a triangular mesh on its surface. This mesh can have its own elasticity that can be tuned with elastic coefficients. 


Recently, we published the following book


Although its primal focus is on blood cell modelling, a huge part of the book is directly devoted to general concepts of mesh models development and is applicable to your problem as well.


If you need further assistance, just let me know,




On 10 Jan 2019, at 17:41, Omri Menashe <address@hidden> wrote:


Dear EspressoMD Users, 


I’m wondering if anyone has had experience modelling and simulating fibre interaction in a suspension using espressoMD?

If you could recommend any references that would be great. I have been looking at the object-in-fluid interactions and doing the background readings.

Any suggestions and help regarding this problem would be greatly appreciated.


All the best, 

Omri Menashe


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