Functions to import non grid associated experimental data

benk · June 29, 2010, 13:04

I have some experimental data for a diffusion coefficient that depends on temperature and concentration. It's difficult to fit this data to polynomial functions and so what I want to do is import this data into my solver and then along with calculated concentration/temperatures, populate a volScalarField using the data along with an interpolation routine.

Has anybody done this and/or are there built-in functions in OpenFOAM to do this?

l_r_mcglashan · June 30, 2010, 06:11

Maybe someone can highlight how to use foam's interpolation routines, but I had to do something similar and just used the STL. I've attached a linear interpolator with a driver routine, let me know if there are problems. I guess for your case you'll have to just call the interpolator twice, once against temperature and then against concentration.

June 29, 2010, 13:04	Functions to import non grid associated experimental data	#1
benk Senior Member Ben K Join Date: Feb 2010 Location: Ottawa, Canada Posts: 140 Rep Power: 19	I have some experimental data for a diffusion coefficient that depends on temperature and concentration. It's difficult to fit this data to polynomial functions and so what I want to do is import this data into my solver and then along with calculated concentration/temperatures, populate a volScalarField using the data along with an interpolation routine. Has anybody done this and/or are there built-in functions in OpenFOAM to do this?

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