Temperature dependent boundary condition

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Hi,

I am trying to model heat transfer in a cryostat cooled by a pulse tube cryocooler. One approach is to set a fixed heat flux at the pulse tube's coldhead. However, more realistically, the cooling power (or heat flux at the coldhead) is a function of the temperature at both the first and second stage coldheads (see a capacity curve for example).

So my question is -- can I define the heat flux at a surface to be a function of the temperature at two locations in my model?

Thank you very much in advance, Joelle


1 Reply Last Post 23.10.2024, 04:06 GMT-4

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Posted: 1 week ago 23.10.2024, 04:06 GMT-4

yes you can define the heat flux as the function of temperature as a variable and use it as a boundary condition at the location you want to set.

yes you can define the heat flux as the function of temperature as a variable and use it as a boundary condition at the location you want to set.

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