# Surface Temperature for thermal analysis

**URL:** <https://calculix.discourse.group/t/surface-temperature-for-thermal-analysis/198>\
**Category:** Uncategorized\
**Created:** [September 21, 2020, 6:47am UTC](https://calculix.discourse.group/t/surface-temperature-for-thermal-analysis/198 "2020-09-21T06:47:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alphaoo1](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/alphaoo1/32/53_2.png) [@Alphaoo1](https://calculix.discourse.group/u/Alphaoo1)\
**Post date:** [September 21, 2020, 6:47am UTC](https://calculix.discourse.group/t/surface-temperature-for-thermal-analysis/198/1 "2020-09-21T06:47:14Z")

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Hello CalculiX community,

I am running a simple thermal simulation.  
I apply some fixed temperature(1000K) at the bottom and the rest of the body is at (200K).

I let the simulation run, and get the results `NT`, which is the temperature at the nodes.

 ![HT_with_dflux_film](https://global.discourse-cdn.com/free1/uploads/calculix/original/1X/e295fd3595d7d148069089768cafd27f8108b68e.png)

How can I get the temperature on the surfaces?

Just for background for why I need this:  
I am trying to establish a coupled simulation between an inhouse solver for particles(XDEM) and CalculiX using [preCICE](https://github.com/precice/precice).  
The particles touch the solid and the temperature is to be transferred from the surface to the particles.

Thank you.

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**Author:** ![JohnM](https://avatars.discourse-cdn.com/v4/letter/j/848f3c/32.png) [@JohnM](https://calculix.discourse.group/u/JohnM)\
**Post date:** [September 21, 2020, 12:53pm UTC](https://calculix.discourse.group/t/surface-temperature-for-thermal-analysis/198/2 "2020-09-21T12:53:15Z")

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A simple way to do this without code modification or using the Interpol program is to look at the \*SUBMODEL command. Make a “dummy” fine model as a cloud of points with at least one finite element, and you can map these results.
