3D Stokes flow, meshed in gmsh

[dokken]

You can include it in plaintext using 3x` encapsulation such as

Add Gmsh geo file here

See for instance:

Differences in result computed from .msh and .geo file

Dear Community I wrote a code for calculating the drag experienced by a sphere in Stokes flow. When I performed the calculations on a .msh file [titled “annular.msh”] that was created in GMSH, and imported into FEniCS using the procedure described here, I get the theoretically correct answer of 6\pi. However when I use gmsh -2 annular.geo to create annular.msh, and perform the necessary calculations I notice that the computed drag is \sim 20.6, which is erroneous. May I please know there is a…