# Brownian Dynamics Parameters

**URL:** <https://gromacs.bioexcel.eu/t/brownian-dynamics-parameters/1419>\
**Category:** User discussions\
**Created:** [January 11, 2021, 1:58pm UTC](https://gromacs.bioexcel.eu/t/brownian-dynamics-parameters/1419 "2021-01-11T13:58:09Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![alevilla](https://dub1.discourse-cdn.com/flex017/user_avatar/gromacs.bioexcel.eu/alevilla/32/439_2.png) [@alevilla](https://gromacs.bioexcel.eu/u/alevilla)\
**Post date:** [January 15, 2021, 5:00pm UTC](https://gromacs.bioexcel.eu/t/brownian-dynamics-parameters/1419/2 "2021-01-15T17:00:43Z")

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Hi,  
I can not understand exactly what is your problem.

But maybe you can look at this post

> [@BD stops after some steps](https://gromacs.bioexcel.eu/t/bd-stops-after-some-steps/918):
>
> GROMACS version: 2020.3 GROMACS modification: No I am performing Brownian Dynamics with hard spheres. But the simulation stops after a random number of steps, Gromacs keeps running but I don’t have evolution on the number of steps in any output file. First I was using only the C12 part of the LJ potential and I thought this problem could be due to two particles getting to close together and the potential getting to big. So I added the C6 term, the problem took longer to appear, the simulation…

or other posts in the forum on brownian dynamics

Best regards  
Alessandra

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