Solving for only one velocity component
is it possible to solve just for one velocity component?
I want to simulate a straight duct with periodic boundary conditions.
By definition the y-component of the velocity should be zero.
Otherwise I get convergence problems with Uy
yes.its simple.just in blockmeshdict file define planes at y and z direction in empty dictionary.in this manner your problem will be one dimensional if you intended that.
Thank you for your reply immortality,
the thing is I don't want it completely 1D so I need Ux depending on the coordinate y.
Only the solving for Uy should be switched off.
The in and outlet planes are already defined as cyclic so I cannot specify to empty
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