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Diffusive flux
Posted 26 apr 2021, 21:47 GMT-4 Chemical, Computational Fluid Dynamics (CFD), Chemical Reaction Engineering 2 Replies
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Dear all,
I am running some simulations taking into account the diffusive flux across a curved interface using (tds.dflux_cr * nr + tds.dflux_cz * nz). When postprocessing the results, I've noticed that the integral of (tds.dflux_cr * nr + tds.dflux_cz * nz) and tds.ndflux_c at that interface are different. Interestingly, when calculating the integral of tds.ndflux_c, I've got the expected behavior, while the integral of (tds.dflux_cr * nr + tds.dflux_cz * nz) deviates from what I expect. I've then tried to solve the problem specifying tds.ndflux_c for the calculation of the normal diffusive flux across the interface, but the solver fails. Any tips on this behavior?
Best regards, NP