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Old   July 27, 2011, 11:34
Default Outlet Problems
  #1
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Join Date: Jun 2011
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Hello,

I am experiencing a problem with the outlet in my system. The outlet is a perfect circle in a perfectly spherical chamber, and at the beginning it works exactly as it should, but then it behaves strangely. In the center, it is still an outlet, but a ring around the center becomes an inlet. Eventually, the entire outlet becomes an inlet (although the outer ring is still blowing stuff into the chamber faster than the center). I have posted my T, U, and p boundary and initial conditions below. If anyone could help me out with this, I would really appreciate it.

T:

Code:
internalField   uniform 300;

boundaryField
{
       Hotspot
       {
             type            zeroGradient;
       }
       Outlet
       {  
             type            zeroGradient;
       }
       Nozzle
       {
             type            fixedValue;
             value            uniform 310;
       }
       NozzleTip
       {
             type            zeroGradient;
       }
       ChamberWall
       {
             type            fixedValue;
             value            uniform 310; 
   }
}
U:

Code:
internalField   uniform (0 0 0);

boundaryField
{
       Hotspot
       {
             type            fixedValue;
             value            uniform (0 0 0);
       }
       Outlet
   {
              type            inletOutlet;
              inletValue        uniform (0 0 0);
              value            $internalField;
        }
        Nozzle
        {
              type            fixedValue;
              value            uniform (0 0 0);
        } 
    NozzleTip
        {
              type            zeroGradient;
        }
    ChamberWall
        {
              type            fixedValue;
              value            uniform (0 0 0);
    }
}
p:

Code:
internalField   uniform 266645;

boundaryField
{
       Hotspot
       {
             type            zeroGradient;
       }
       Outlet
       {
     type            outletInlet;
             outletValue  uniform 266645;
             value          $internalField;
       }
       Nozzle
       {
             type            zeroGradient;
       }
       NozzleTip
       {
             type            zeroGradient;
       }
       ChamberWall
       {
             type            zeroGradient;
       }
}
Thank you.

Last edited by Cyberholmes; July 27, 2011 at 12:07.
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