# Input temperature map as boundary condition for neutronics simulation

**URL:** <https://openmc.discourse.group/t/input-temperature-map-as-boundary-condition-for-neutronics-simulation/908>\
**Category:** User Support\
**Created:** [December 27, 2020, 7:40pm UTC](https://openmc.discourse.group/t/input-temperature-map-as-boundary-condition-for-neutronics-simulation/908 "2020-12-27T19:40:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![siddarth\_fusion](https://avatars.discourse-cdn.com/v4/letter/s/b487fb/32.png) [@siddarth\_fusion](https://openmc.discourse.group/u/siddarth_fusion)\
**Post date:** [December 27, 2020, 7:40pm UTC](https://openmc.discourse.group/t/input-temperature-map-as-boundary-condition-for-neutronics-simulation/908/1 "2020-12-27T19:40:09Z")

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Hi,

I’m trying to couple openmc with a CFD solver. I think this has been done before by another researcher but the research paper does not go into the details of the inner workings. Please see below link.

> **[etd.pdf](https://repository.lib.ncsu.edu/bitstream/handle/1840.20/37274/etd.pdf?sequence=1&isAllowed=y)**
>
> 2.99 MB

I have a run an isotropic neutronics simulation to get a power distirbution in a structured mesh. i’ve interpolated this onto my cfd mesh. and i have run my simulation and gotten a resultant temperature map.

I’d like to input this temperature mesh into openmc & run the neutronics simulation again to get an updated temp.

can someone help me figure this out please?

thank you  
siddarth

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**Author:** ![paulromano](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/paulromano/32/486_2.png) [@paulromano](https://openmc.discourse.group/u/paulromano)\
**Post date:** [December 29, 2020, 4:31pm UTC](https://openmc.discourse.group/t/input-temperature-map-as-boundary-condition-for-neutronics-simulation/908/2 "2020-12-29T16:31:22Z")

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Hi @siddarth_fusion and thanks for your first post! We have been working on MC-CFD coupling at ANL as part of the DOE Exascale Computing Project. I’d encourage you to read our recent paper in _Nuclear Science and Engineering_ (available for free):

> **[A Code-Agnostic Driver Application for Coupled Neutronics and...](https://www.tandfonline.com/doi/full/10.1080/00295639.2020.1830620)**
>
> (2020). A Code-Agnostic Driver Application for Coupled Neutronics and Thermal-Hydraulic Simulations. Nuclear Science and Engineering. Ahead of Print.

The coupling code that we are developing is also available on github:

> **[enrico-dev/enrico](https://github.com/enrico-dev/enrico)**
>
> ENRICO: Exascale Nuclear Reactor Investigative COde

After looking through those, let us know if you have specific questions.