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Re: [ESPResSo-users] Question about OIF

From: Kai Szuttor
Subject: Re: [ESPResSo-users] Question about OIF
Date: Wed, 3 Jul 2019 21:14:49 +0200


it seems like the script you used is adapted to the new syntax of ESPResSo. So you could try to use the current HEAD by cloning the python branch from github via:

git clone


On 3. Jul 2019, at 20:19, Mehdi Nikfar <address@hidden> wrote:

Hello there,

I am a new user of  ESPResSo 4.0.2. I plan to simulate the RBCs' motion in microfluidic systems. As the first step I run the located in object_in_fluid folder and I did not have any difficulty running the script. Afterwards, since I wanted to increase the number of RBCs randomely, I downloaded  from HERE and generate 10 RBCs, but I faced the following error in running the script:
  File "", line 163, in <module>
    system.thermostat.set_lb(LB_fluid=lbf, gamma=1.5)
  File "espressomd/thermostat.pyx", line 47, in espressomd.thermostat.AssertThermostatType.decoratorfunction.wrapper (/home/mehdi/Packages/espresso/build/src/python/espressomd/thermostat.cpp:1731)
  File "espressomd/thermostat.pyx", line 333, in espressomd.thermostat.Thermostat.set_lb (/home/mehdi/Packages/espresso/build/src/python/espressomd/thermostat.cpp:4228)
TypeError: set_lb() got an unexpected keyword argument 'gamma'

Could you please help me to figure this out?
Best Regards,

Mehdi Nikfar

Graduate Research Assistant
Department of Mechanical Engineering and Mechanics
Lehigh University
Bethlehem, PA 18015

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