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-   -   Material Properties table? (function of two variables) (http://www.cfd-online.com/Forums/cfx/107577-material-properties-table-function-two-variables.html)

evcelica October 1, 2012 16:29

Material Properties table? (function of two variables)
 
I'm doing some simulations with seawater and the material properties will be functions of both Temperature and Salinity I have tables with the material properties, but am wondering if it is possible to insert them as a table of some sort.

I can create a mathematical function of two variables but this is kind of a pain and inserting a table would be much easier.

ghorrocks October 1, 2012 19:02

You might be able to use a 3D interpolation function to do this. Just keep the third dimension as zeroes.

evcelica October 1, 2012 19:36

That's what I was thinking, but when I looked at it the argument units had to be the same for each of the 3 dimensions. I guess this wouldn't matter If I just gave salt content a false temperature unit. That would probably work fine then, Thanks.

I've settled on just using several 1D interpolation functions, and I will just have to change them manually according to the salt content, which won't vary in each simulation. I didn't know if there was an easy straightforward way to do this or not, and figured it might be helpful for future materials that depend on two variables.

Thanks again,
Erik


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