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Concentration Source Term in Wrong Units?
Posted 11 nov. 2018, 14:38 UTC−5 Chemical 1 Reply
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Hello,
I'm trying to set up a 1d, axisymetric, reaction-diffusion problem.
I'm using 'coeffecient form' of the PDE
My dependent variable in concentration in [mol/m^3]
My source term should be a concentration addition rate in [mol/m^3-s], but I don't see it listed.
If I use the existing concentration in [mol/m^3] as my source term, my diffusion coeffecient ends up in the wrong units as [m^2]. My diffusion coeffecient is in [m^2/s].
How do I get this equation in terms of rates?
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Could the issue be that your model is stationary as opposed to time-dependent, and therefore time is not defined?
Jeff
-------------------Jeff Hiller