Temperature dependence

adg

When doing a Thermal Steady State analysis the (internal) solver does not seem to interpolate between values input in the temperature dependence field in material properties. In the manual it is stated that there is interpolation between values and sure enough, interpolation seems to happen fine in Thermal Transient analysis.
For example (a rather extreme one), if you take a material with a thermal conductivity of 0 @ 0°C and 400W/m/k @ 200°C it will not conduct at all when the initial temperature is set to anything below 100°C. Only starting at an initial temperature of 101°C or higher will any conductance occur. I would expect from a linear interpolation that the thermal conductivity would be 100W/m/K @ 50°C for example.

Is this intended behavior or am I perhaps glossing over something?

Thanks in advance!

disla

Hi adg,

Are you sure your problem has Steady State Solution?

There is no initial temperature in Steady State ¿isn't it?.

By other hand 0 @ 0°C . mmmmmh

Could you try 0.0001 @ 0°C or -400 @ -200°C .

Regards

adg

I don't seem to be able to reproduce the issue anymore, but thank you anyways!