Step 7: Operating Conditions

Boundary Conditions

1.   Set the operating pressure.

Boundary Conditions Operating Conditions...

(a)   Enter 0 atm for Operating Pressure.

(b)   Click OK to close the Operating Conditions dialog box.

  Since you have specified the boundary condition inputs for pressure in terms of absolute pressures, you have to set the operating pressure to zero. Boundary condition inputs for pressure should always be relative to the value used for operating pressure.