Thanks Daniel for your answer, I used the continuity equation (nabla vector velocity) to obtain the equation in temperature. But actually, maybe we should use it as a constraint to my problem. But now, how can I create this constraint ? with a new equation ? I tried : velocity.divergence == 0 but it doesn’t work.
Thank you, Fabien > Le 10 oct. 2018 à 17:43, Daniel Wheeler <[email protected]> a écrit : > > Don't you still have a $\nabla . \vec{u} = 0$ equation though? It > doesn't go away. That equation becomes like a constraint. > > https://www.comsol.com/multiphysics/boussinesq-approximation > > On Wed, Oct 10, 2018 at 5:58 AM fgendr01 <[email protected]> wrote: >> >> Hi Daniel, >> Thank you for your answer. >> I thank you for trying to solve my problem. >> About my set of the equation here is my reasoning. >> > > > -- > Daniel Wheeler > _______________________________________________ > fipy mailing list > [email protected] > http://www.ctcms.nist.gov/fipy > [ NIST internal ONLY: https://email.nist.gov/mailman/listinfo/fipy ]
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