I want to simulate my problem using Stokes equation and convection diffusion equation. I want the Stokes equation to not have any transient term. But the creeping flow module has time dependency, as I am doing a time-dependent study and the convection diffusion equation has a transient term, which is required to see the species evolution. Both the modules are coupled, so I cannot do a separate study, i.e., stationary for Stokes and transient for convection diffusion equation.
A way around this problem would be modeling the Stokes equation using PDE module. But I am unable to create a Stokes equation, grad(p) = mu * laplacian(u), using the PDE module.
Any kind of suggestion would be appreciated.