Dear all,
Can someone help me with the cone calculations in EN-13445. The calculations show a warning as follows


Warning: EN 13445 Paragraph 7.6.1 Violation
EN-13445 requirement: ea * cos(a) / Dc < 0.001 - Code Violation
Can not compute required thickness for this geometry.
The cone is suitable for the design pressure

Does it mean that the cone and the included nozzles need to be done a FEA check?

Thanks