[panda60]

I used the "directMapped" to recycle the velocity back.
This has 3 sampleMode : nearestCell , nearestFace , nearestPatchFace.
in his example , tutorials/incompressible/pisoFoam/les/pitzDailyDirectMapped,
nearestCell method works fine. This is the boundary file for nearestCell.
5
(
inlet
{
type directMappedPatch;
nFaces 30;
startFace 27238;
sampleMode nearestCell;
sampleRegion region0;
samplePatch none;
offset (0.0495 0 0);
}
outlet
{
type patch;
nFaces 57;
startFace 27268;
}
upperWall
{
type wall;
nFaces 275;
startFace 27325;
}
lowerWall
{
type wall;
nFaces 302;
startFace 27600;
}
frontAndBack
{
type empty;
nFaces 27570;
startFace 27902;
}
)


but nearestFace method doesn't work well.
In the begining, it doesn't work. Then I changed the startFace to 0, it works, but it doesn't works well, several steps later, it crashed. Who have used this sampleMode, can give some suggestions ? The following is my boundary file for nearestFace.

5
(
inlet
{
type directMappedPatch;
nFaces 30;
startFace 0;
//startFace 27238;
sampleMode nearestFace;
sampleRegion region0;
samplePatch none;
offset (0.05 0 0);
}
outlet
{
type patch;
nFaces 57;
startFace 27268;
}
upperWall
{
type wall;
nFaces 275;
startFace 27325;
}
lowerWall
{
type wall;
nFaces 302;
startFace 27600;
}
frontAndBack
{
type empty;
nFaces 27570;
startFace 27902;
}
)