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[snappyHexMesh] snappyHexMesh questions???

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Old   January 30, 2015, 08:00
Default snappyHexMesh questions???
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Eric Liu
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hello, I am new here and have a problem when using snappyHexMesh to generate mesh.

the terminal shows ''Point (1.93 3.731 1.243) is not inside the mesh or on a face or edge. Bounding box of the mesh0 0 1.05) (50 50 1.7).''

however, while I change the locationInMesh many times, this problem still exists.

Any help is appreciated !!!
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Old   February 8, 2015, 14:38
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The solutions which is helped to me...
When you define the background mesh with blockMeshDict you need to change the definition in such a way that first four points have Xmin coordinate and other four points have Xmax coordinate:

My working example:
vertices
(
(-15 55 -140)
(-15 105 -140)
(-15 105 -90)
(-15 55 -90)

(35 55 -140)
(35 105 -140)
(35 105 -90)
(35 55 -90)
);

blocks
(
hex (0 1 2 3 4 5 6 7) (20 20 20) simpleGrading (1 1 1)
);

As you see we start from (Xmin, Ymin, Zmin), then move to (Xmin, Ymax, Zmin), then to (Xmin, Ymax, Zmax) the to (Xmin, Ymin, Zmax)
This steps repeat for Xmax plane.
I think that will work for your case. Try this algorithm )
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Old   March 3, 2015, 02:20
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Eric Liu
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Well, thank you for reply! I will try later~~~
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Old   March 3, 2015, 16:57
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Christos
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Hi Eric,

I am not sure if you found a solution to your problem.

In case you didnt you can try the following :

Delete the blockMesh related files and regenerate the block mesh

I am not sure if your blockfile definition is correct.

The definition needs to be in cyclic form :

xmin ymin zmin
xmax ymin zmin
xmax ymax zmin
xmin ymax zmin
xmin ymin zmax
xmax ymin zmax
xmax ymax zmax
xmin ymax zmax
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