Re: [ESPResSo-users] Espressomd-users Digest, Vol 67, Issue 8

[Renáta Tóthová]

Hi Saeed,

I am member of cell-in-fluid group, which has developed object-in-fluid 
part of Espresso.

I checked your mesh, it has wrong orientation of triangles. I fixed it 
with our command from OIF. I send to you in attachment.

So first problem was with orientation of your mesh.
Then, as you wrote, when you change the number of nodes on surface, you 
have to change elastic coefficient (ks, kb, ..) and mass of one node.

Please, look at our website
http://cell-in-fluid.fri.uniza.sk/en/content/oif-espresso

There is updated info about OIF, updated samples of simulation scripts 
and various meshes for RBC and sphere, too. I hope in Object-in-fluid 
User Guide, you find all information, what you need.

If no, send me email and I try to answer.

Have a nice day

Renata Tothova

PhD student
Faculty of management science and informatics
University of Zilina, Slovakia

On 18.05.2016 21:06, address@hidden wrote:
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>     1. map_position_to_lattice error (Saeed Momeni Bashusqeh)
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> Message: 1
> Date: Wed, 18 May 2016 23:35:36 +0430
> From: Saeed Momeni Bashusqeh <address@hidden>
> To: address@hidden
> Subject: [ESPResSo-users] map_position_to_lattice error
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset="us-ascii"
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> Dear Espresso Users
>
> I'm trying to simulate a deformable object (RBC) in fluid. For that, I
> myself created a triangulated mesh for the object using GMSH (it has
> 1026 nodes). When I attempt to simulate its movement in fluid (without
> any obstacle) I get this error: MAP_POSITION_TO_LATTICE: POSITION NOT
> INSIDE LOCAL PLAQUETTE.
>
> The simulation runs for a very few steps and then stops due to the
> mentioned error. When I visualize the object in paraview, everything
> seems to be right from triangulation point of view. I know there is a
> problem with my new mesh (maybe parameters such as Ks,Kb must be
> modified, I'm not sure) because when I use the mesh provided with
> Espresso package (it has 400 nodes), everything goes fine. I'm using the
> .tcl file provided with Espresso for simulation of object in fluid.
>
> I've attached mesh files. I'd appreciate your kind help to resolve this
> error.
>
> Cheers,
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