Hi,
I have a very simple model, consisting of a 1 x 1 m^2 square which is filled with Air.
I know that this problem can be solved by assuming ideal gas, and computing the area of the deformed domain. However, I want to combine this concept with more complex fluids, and therefor I want the Laminar Flow physics to solve this problem.
The study is Time Dependent.
I use the Deformed Geometry module to prescribe the deformation of my domain:
Attach Free Deformation to the whole domain, and apply a Prescribed Mesh Velocity to the top boundary, with prescribed y velocity of -0.05 m/s. The other boundaries are fixed (prescribed displacement of (0,0)).
It then fails: "Repeated error test failures. May have reached a singularity." when I try to run it.
Also, I see that the two sides of the square keep there height, but they have to shrink with the lowering of the top boundary.
I have a very simple model, consisting of a 1 x 1 m^2 square which is filled with Air.
I know that this problem can be solved by assuming ideal gas, and computing the area of the deformed domain. However, I want to combine this concept with more complex fluids, and therefor I want the Laminar Flow physics to solve this problem.
The study is Time Dependent.
I use the Deformed Geometry module to prescribe the deformation of my domain:
Attach Free Deformation to the whole domain, and apply a Prescribed Mesh Velocity to the top boundary, with prescribed y velocity of -0.05 m/s. The other boundaries are fixed (prescribed displacement of (0,0)).
It then fails: "Repeated error test failures. May have reached a singularity." when I try to run it.
Also, I see that the two sides of the square keep there height, but they have to shrink with the lowering of the top boundary.