# Steinberger material model with melt transport

**URL:** <https://community.geodynamics.org/t/steinberger-material-model-with-melt-transport/3044>\
**Category:** ASPECT\
**Created:** [July 20, 2023, 6:10pm UTC](https://community.geodynamics.org/t/steinberger-material-model-with-melt-transport/3044 "2023-07-20T18:10:30Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![bobmyhill](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/bobmyhill/32/38_2.png) [@bobmyhill](https://community.geodynamics.org/u/bobmyhill)\
**Post date:** [July 21, 2023, 1:49am UTC](https://community.geodynamics.org/t/steinberger-material-model-with-melt-transport/3044/2 "2023-07-21T01:49:12Z")

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Dear Vivian,

This is a variation on a question we are often asked.

Short answer: The Steinberger material model does not include a parameterisation of melt transport. Implementation would require a significant change to the code, not just the prm file. Any implementation would need to carefully consider the chemistry and physics of interest.

Longer answer: See previous posts on this topic, including the three links below (which you can find by typing “melt” into the search button in the top right of the forum page). The first post from Juliane is particularly relevant. I think her question is also useful here:

> What is the purpose of your model, and what specific components/physical processes do you need for that? For example, is it important to see where the melt migrates to, or only where it is being generated?"

If we have more details on exactly what you want to do, we can suggest (a) existing material models, or (b) the easiest way to implement what you want.

Best wishes,  
Bob

> [@Melt Production/ Migration](https://community.geodynamics.org/t/melt-production-migration/1498/3):
>
> Hi Carlos, great to hear that you want to use ASPECT for modeling melting and melt migration! Because this is such a complex problem, it’s not that simple to answer your question. So let me address your questions separately: (1) Melting model. The melting model depends on the material model that you use. There is one that uses the Katz et al., 2003, and Sobolev et al., 2011 melting models (this is the latent heat melt material model), but this model does not include melt migration. There is …

> [@Melting with non-linear rheology](https://community.geodynamics.org/t/melting-with-non-linear-rheology/540/3):
>
> Hi Lars, this depends a bit on how realistic you want your model to be. We’ve made a model with melt transport and a simple stress-limiter rheology for a manuscript that is currently in review, you can find the manuscript here: [https://arxiv.org/abs/1810.10105](https://arxiv.org/abs/1810.10105) (the model is described in Section 3.3) and a description of how to reproduce the models here: [https://github.com/tjhei/paper-aspect-melt-paper-2-data](https://github.com/tjhei/paper-aspect-melt-paper-2-data) However, this does not include hydrofracturing, so there is no influence of the flui…

> [@Melt with the Ascii reference profile materila model in Burnman cookbook](https://community.geodynamics.org/t/melt-with-the-ascii-reference-profile-materila-model-in-burnman-cookbook/2831/4):
>
> Hi Viv, Sorry for the delayed reply. Thanks for including the information about your motivation. I recommend that you read the documentation I linked to in my previous email, and figure out the things you need to change to solve your problem. You can then try to implement those changes, or describe to us where you need help. Generally, we’re happy to help out with prm changes, explaining code functionality, or helping you make specific changes to the code. Turning a scientific idea into a con…

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