# Applying linear varying temperature with height

**URL:** <https://forum.itascainternational.com/t/applying-linear-varying-temperature-with-height/899>\
**Category:** UDEC\
**Created:** [January 25, 2023, 3:38pm UTC](https://forum.itascainternational.com/t/applying-linear-varying-temperature-with-height/899 "2023-01-25T15:38:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Binu](https://avatars.discourse-cdn.com/v4/letter/b/3ab097/32.png) [@Binu](https://forum.itascainternational.com/u/Binu)\
**Post date:** [January 25, 2023, 3:38pm UTC](https://forum.itascainternational.com/t/applying-linear-varying-temperature-with-height/899/1 "2023-01-25T15:38:39Z")

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I want to apply linear varying temperature with height at boundary. I winder if I can use like this command where stress is linearly varied.

block insitu stress -9.04E6 0 0 gradient-y 0.27 0 0

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**Author:** ![Jay](https://avatars.discourse-cdn.com/v4/letter/j/ed8c4c/32.png) [@Jay](https://forum.itascainternational.com/u/Jay)\
**Post date:** [February 8, 2023, 3:15pm UTC](https://forum.itascainternational.com/t/applying-linear-varying-temperature-with-height/899/2 "2023-02-08T15:15:26Z")

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Binu  
You can apply a thermal boundary condition to external boundaries.  
Please use the command “block edge apply keyword = value1, value2 \<range. . . \>”  
The keyword can be convection, flux, radiation.

"block insitu stress " command is used to set up insitu stresses in the model.

Jay

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**Author:** ![Binu](https://avatars.discourse-cdn.com/v4/letter/b/3ab097/32.png) [@Binu](https://forum.itascainternational.com/u/Binu)\
**Post date:** [March 3, 2023, 12:21am UTC](https://forum.itascainternational.com/t/applying-linear-varying-temperature-with-height/899/3 "2023-03-03T00:21:02Z")

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Thanks you Jay for answer