# Different Amplitude for Sink temperature & Film Coefficient

**URL:** <https://calculix.discourse.group/t/different-amplitude-for-sink-temperature-film-coefficient/2048>\
**Category:** Uncategorized\
**Created:** [January 30, 2024, 7:19am UTC](https://calculix.discourse.group/t/different-amplitude-for-sink-temperature-film-coefficient/2048 "2024-01-30T07:19:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Antonio\_Crupi](https://avatars.discourse-cdn.com/v4/letter/a/c6cbf5/32.png) [@Antonio\_Crupi](https://calculix.discourse.group/u/Antonio_Crupi)\
**Post date:** [January 30, 2024, 7:19am UTC](https://calculix.discourse.group/t/different-amplitude-for-sink-temperature-film-coefficient/2048/1 "2024-01-30T07:19:20Z")

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Dear All, I need to perform a Heat Transient Thermal Analysis. Correct if I’m wrong but it seems that it is not possible give a different Amplitude for the Sink Temperature and Film Coefficient.

 ![image](https://global.discourse-cdn.com/free1/uploads/calculix/original/2X/3/3b6aba8d9eb7655f131bc48e1c891b3c319169e8.png)

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**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [January 30, 2024, 8:01am UTC](https://calculix.discourse.group/t/different-amplitude-for-sink-temperature-film-coefficient/2048/2 "2024-01-30T08:01:34Z")

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Indeed, amplitude is currently supported only for sink temperature: [Amplitude support for film coefficient and emissivity - Feature Requests - PrePoMax](https://prepomax.discourse.group/t/amplitude-support-for-film-coefficient-and-emissivity/722)

You would have to edit the keywords manually to define it for the film coefficient.