Hello everyone, I am currently working on the development of a valve and I'm having difficulty getting good results.
The valve has to open at 170 bars (pressure inlet) and at the outlet, it has to open at 1 bar (atmospheric pressure). The valve is associated with a spring to allow return.
The surrounding fluid is compressible;
The analysis is transient
Solver type: density-based
The contact between the valve and the wall (upper wall) is defined as a porous zone :
Mesh quality :
the calculation is launched at the first order of upwind. With a time step of 5 e-7s.
The residues do not converge :
And the valve moves with difficulty :
If someone has an idea how to solve this, I will be able to add information if you wish.