hello everyone
is anybody here using comsol multiphysics?
i'm trying to model a tube which the inlet is a fully developed fluid
but the problem is how to enter a parabolic inlet profile for velocity
in 2d axisymmetric it is very simple. but my model is 3d
i've entered "r" as a variable in definitions{r=sqrt((x^2)+(y^2))} and another variable for velocity, using "r". but the solution is not converged
how can i give the correct parabolic inlet?
is anybody here using comsol multiphysics?
i'm trying to model a tube which the inlet is a fully developed fluid
but the problem is how to enter a parabolic inlet profile for velocity
in 2d axisymmetric it is very simple. but my model is 3d
i've entered "r" as a variable in definitions{r=sqrt((x^2)+(y^2))} and another variable for velocity, using "r". but the solution is not converged
how can i give the correct parabolic inlet?
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