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Re: [ESPResSo-users] Espresso/Espresso++ and multiphase fluids

From: Axel Arnold
Subject: Re: [ESPResSo-users] Espresso/Espresso++ and multiphase fluids
Date: Thu, 13 Feb 2014 09:07:36 -0800
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.2.0

Hi Markus,

finally also something regarding your question about multiphase fluids :-).

First note that the Shan-Chen was developed for simulating embedded particles, not so much plain fluids. For the ltatter, one often needs larger grids, and wir currently limited to one GPU and something like 150^3 lattice nodes on 4GB GPUs. Also, walls for Shan-Chen probably should have different wetting properties for the different liquids, not just our current bounce-back walls. Marcello and Mauro, who actually wrote the code, are currently thinking about how and what to do.

Best regards,

On 12.02.14 03:25, Wink, Markus wrote:

Dear Espresso-community,


I have read that Espresso++ is the successor of Espresso. Does it mean, that  the support of Espresso will be stopped soon and one should swap to Espresso++? So far, the documentation of the latter does not seem to be that extensive as the one of ESPresSo.
I have also read the paper on Espresso++ (DOI: 10.1016/j.cpc.2012.12.004) which states, that the main difference lies in the ability of providing AdResS. Besides that, are there other reasons why one should choose ESPresSo++ over ESPresSo?


Furthermore I am interested in the simulation of multiphase fluids. I am thinking of simulations of flow-focusing devices, joining of droplets or injection of droplets. ESPresSo should be able doing that using the Shan-Chen algorithm , shouldn’t it? Does anyone of you has tried it before and could tell me about his experience, please?


Thanks in advance!



Markus Wink



JP Dr. Axel Arnold
ICP, Universität Stuttgart
Allmandring 3
70569 Stuttgart, Germany
Email: address@hidden
Tel: +49 711 685 67609

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