Learning Forum

[Levente Bicskei]

Dear Forum,

I would like to create a simple sample simulation of cryogenics cooling. Just a pipe with one inlet, one outlet.

How can I create a new material in the temperature range of 10-50 K?

I tried copying an existing gas and manually modifying the material properties, but it seemed to only work down to 100 K. From measurements I have the data-points for temperature-viscosity, temperature-density, etc pairs. I want to create a new material from these, but I only saw polynomial options in the basic ansys material data file.

Otherwise, I have 40 pairs of points (10-50 K with 0.1 K step size)

Thank you for your help!

[Prashanth]

Hello,

That is very high no of data points. Easy way would be to curve fit the graph in excel (or matlab etc.) and get a polynomial of some order. Input that polynomial to the material panel. 

[Levente Bicskei]

Dear Prashanth,

But every time I input the polynomial coefficients and modify the min-max range the curve seems right, but after I close Polynomial Profile tab and open it again, it goes back to the default 300-500 K range. 



Will it be still okay even though the min-max values changed? 

Thank you!

[Prashanth]

I think the values here are just to visualize the graph, at different ranges. It's okay if it defaults to a value.