Hi all,
I am currently have a geometry with two materials, one is wall and the other is some fluid. The gmsh file for the geometry is as following,
Point(1) = {0.25, 0.25, 0, 0.4};
Point(2) = {9.75, 0.25, 0, 0.4};
Point(3) = {5.5, 1.0, 0, 0.4};
Point(4) = {5.75, 1.0, 0, 0.4};
Point(5) = {0.25, 5.75, 0, 0.4};
Point(6) = {5.5, 5.75, 0, 0.4};
Point(7) = {5.75, 5.75, 0, 0.4};
Point(8) = {9.75, 5.75, 0, 0.4};
Point(9) = {0, 0, 0, 1};
Point(10) = {10, 0, 0, 1};
Point(11) = {0, 6, 0, 1};
Point(12) = {10, 6, 0, 1};
Line(1) = {5, 1};
Line(2) = {1, 2};
Line(3) = {2, 8};
Line(4) = {8, 7};
Line(5) = {7, 4};
Line(6) = {4, 3};
Line(7) = {3, 6};
Line(8) = {6, 5};
Line(11) = {11, 9};
Line(12) = {9, 10};
Line(13) = {10, 12};
Line(14) = {12, 11};
Line Loop(10) = {8, 1, 2, 3, 4, 5, 6, 7};
Plane Surface(10) = {10};
Line Loop(16) = {8, 1, 2, 3, 4, 5, 6, 7, -14, -13, -12, -11};
Plane Surface(16) = {16};
Physical Surface(0) = {10};
Physical Surface(1) = {10,16};
Where the Surface 10 is the fluid and Surface 16 is the wall.
I am trying to get the fluids' velocity and pressure from the Navier Stokes Equation. So firstly, I just assume the hole geometry satisfies the Navier Stokes Equation, then I set the both the pressure and velocity inside the walls to be 0 as a boundary condition for the equations.
However, the result I get is not good. Could I ask for some help for my problem? Since there are some further uses, I cannot change a new geometry without walls.
Thanks for your reading and help!
