# 2D-model with 1D-thermal network

**URL:** <https://calculix.discourse.group/t/2d-model-with-1d-thermal-network/2684>\
**Category:** Examples/Tutorials\
**Created:** [April 15, 2025, 8:43am UTC](https://calculix.discourse.group/t/2d-model-with-1d-thermal-network/2684 "2025-04-15T08:43:36Z")\
**Posts on this page:** 1\
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**Author:** ![Disla](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/disla/32/3548_2.png) [@Disla](https://calculix.discourse.group/u/Disla)\
**Post date:** [April 15, 2025, 10:53am UTC](https://calculix.discourse.group/t/2d-model-with-1d-thermal-network/2684/2 "2025-04-15T10:53:10Z")

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Hi Rafal,

There was a post some time ago about this kind of simulations .Mecway has nicely implement it for Shell and Solid Elements. Let me know if you need something else.

> [@Flow Network model - missing some heat](https://calculix.discourse.group/t/flow-network-model-missing-some-heat/1360):
>
> I have a test problem that uses heat transfer with a pipe flow network. There is no pressure drop calculation, only mass flow and capacitance are considered (test model below). The figure shows the issue. I apply a convection on the base, a mass flow and inlet temperature to the pipe. I expected the convection, conduction and thermal mass transport to all be the same, but the pipe flow “cool down” is about 30% too low. Any help would be appreciated! ---------------- pipetest.inp \*NO…

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