laplacian term in turbulent model
Hi Foamers,
I am a new users to OpenFOAM, and using OpenFOAM 1.6. I try to do some modification to LRR model. The l.h.s of the original equation of R is as follows: Quote:
Quote:
When running pisoFoam after compilation, I receive the error message. Quote:
Any help is appreciated! Thank you. |
Hello,
I am facing exactly the same problem as you, were you able to fix it? Cheers, Thierry |
@Thierry
I had some similar problems a little while back. The code that was provided was Code:
edit: I didn't see how old that thread was...so i directed it at Thierry after the fact |
Dear Chegdan,
Thanks for your answer. I see your point, I will try to investigate more in which way to set down the equation in order that it works. Cheers, Thierry |
I don't think it's an an implicit/explit issue. The first term in the laplacian function is automatically assumed explicit, I think. The problem is that OF 2.0 and previous don't have fvm::laplacian(tensor,tensor) functionality implemented. This has been fixed in the 2.0.x git repository, and presumably also in 2.1. I am running the same changes you describe to the LRR (and LaunderGibsonRSTM) in an up-to-date OF without problems. I don't yet have a handle on whether the accuracy of the modelling is improved by said changes.
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