Noise in MICRESS

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matt_hughes
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Noise in MICRESS

Post by matt_hughes » Thu Aug 27, 2026 11:21 am

Hi MICRESS forum

I am using MICRESS 7.2 and am confused how the noise variable. How does this add noise to deltaG and how do I do this in MICRESS.


Many thanks,
Matthew

Bernd
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Joined: Mon Jun 23, 2008 9:29 pm

Re: Noise in MICRESS

Post by Bernd » Thu Aug 27, 2026 6:19 pm

Dear Matthew,

The keyword "noise" is part of the "dG-options" which allow manipulation of the driving force for phase transformation. The user can specify random noise on all interface cells by giving a noise amplitude (in J/cm3). It is important to note that noise is added after averaging ("avg") but before cutting ("max"). Using noise on the driving force can e.g. be used to help break-up of a planar front, especially if there are no other sources of noise present (like from TC-coupling).

Bernd

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