Mass diffusion -- CFD Online Discussion Forums

December 15, 2006, 13:48	Mass diffusion	#1
Haritz Guest Posts: n/a	Hi everyone, i´m trying to simulate the mass-diffusion in a closed domain with a binary miscible liquids, i.e.: water-ethanol. The D (mass diffusion coefficient) is about 4,5e-9, but when I run the simulation in Fluent, the mass diffusion is very slow, slower than the experimental data. What can I be doing wrong?

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