[Ron de Vos]

I am a little bit confused. I want to give the Hull a speed of 15 knots. In the motrobiketutorial is used a special O.org folder initinalConditions. In cylindertutorial there is a change of the inlet X direction in the U folder. What is the best way to include speed in the wigleyhull tutorial?

[wyldckat]

Quick answer:

• Tutorial case: "multiphase/interDyMFoam/ras/DTCHull"
• Velocity file: "0.org/U"
• "Umean" is the absolute value for the outlet boundary condition, which is used here:
  

      outlet
      {
          type            outletPhaseMeanVelocity;
          alpha           alpha.water;
          Umean           $Umean;
          value           $internalField;
      }

  This is because the "outletPhaseMeanVelocity" boundary condition will calculate the direction based on the flow direction (at least I think it is...).
• "mUmean" is the vectorial value over X, which is used here:

  internalField   uniform ($mUmean 0 0);

• The folder "0.org" is only used if the following commands from the "Allrun*" scripts work properly:
  

  rm -rf 0
  cp -r 0.org 0

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PS: For future reference, the post above was moved from http://www.cfd-online.com/Forums/ope...-paraview.html