[Stan Zhou]

Hello all,

I'm learning OpenFOAM by using the solver olaFlow. However, I'm quite confused with the porosityDict and the porosityIndex in setFields.

In the tutorial of breakwater, there are 4 materials in porosityDict. I think the clear region means water, and the other 3 columns of parameters means 3 kinds of materials using in this tutorial(core, secondary Layer and primary Layer).

In setFields, the volScalarFieldValue porosityIndex 1, porosityIndex 2 and porosityIndex 3 are given. At first, I think the porosityIndex 1 to 3 that I set in setFields should follow the sequence in porosityDict. However, when I gave a porosityIndex 5 (while there were only three materials except water in porosityDict), it still appeared in paraView.

Therefore, I wonder what is exactly used in our calculation, the coefficients in porosityDict or the porosityIndex in setFields? By the way, is there an one-to-one correspondence between the materials I set in porosityDict and the porosityIndex in setFields?

Best regards,
Stan