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Forum: ANSYS Meshing & Geometry

March 7, 2013, 05:42

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

No negative volume in this project, the pre-mesh...

No negative volume in this project, the pre-mesh quality > 0.8.

Forum: ANSYS Meshing & Geometry

March 7, 2013, 05:08

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

You won't see negative volume unless you do a...

You won't see negative volume unless you do a check mesh on the unstructured mesh. But if you look at the quality, you would find a lot of elements with a quality around 0. Those elements are your...

Forum: ANSYS Meshing & Geometry

February 26, 2013, 05:13

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

Vertices need to be as much as possible aligned....

Vertices need to be as much as possible aligned. Because a block is defined by 4 vertices, so if they are not well aligned, your block would be distorted.
When the block is rectangular, you have a...

Forum: ANSYS Meshing & Geometry

February 26, 2013, 03:50

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

I had a quick look at your blocking file. There...

I had a quick look at your blocking file.
There are a lot of troubles : splits which are not propagated as they should (that is not an issue, unless you are really confotable with blocking),...

Forum: ANSYS Meshing & Geometry

February 25, 2013, 09:21

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

In fact, it makes sense ... the blocks were...

In fact, it makes sense ... the blocks were highly distorted. If you add more or less nodes, ICEM would sometimes manage to handle this distortion, sometimes not. It would depend on the number of...

Forum: ANSYS Meshing & Geometry

February 25, 2013, 09:05

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

Your blocking stratégy is wrong ... way too...

Your blocking stratégy is wrong ... way too complex.
See attached what I would have done.

Just think that O-Grid is good only with circle shape ... that's all, it's not a good idea with...

Forum: ANSYS Meshing & Geometry

February 21, 2013, 10:03

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

It's really hard to help you without the project...

It's really hard to help you without the project files ..

Forum: ANSYS Meshing & Geometry

February 21, 2013, 09:43

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

On the tree menu, right click on curve -> color...

On the tree menu, right click on curve -> color by count :

Yellow means that the curve is in contact with one surface.
Red means that the curve is in contact with 2 surfaces.
Blue means that the...

Forum: ANSYS Meshing & Geometry

February 21, 2013, 09:14

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

That looks like to be an association issue. But...

That looks like to be an association issue. But you should share your .tin and .blk file so we could have a look.

For your record, multiple edge is a possible problem.
But if you have 3 or more...

Forum: ANSYS Meshing & Geometry

February 20, 2013, 05:35

Replies: 108

[ANSYS Meshing] Blade tip blocking

Views: 12,693

Posted By BrolY

Blocking -> Associate -> Update Association. ...

Blocking -> Associate -> Update Association.

If it doesn't work, you would have to redo all the association hand by hand.
Your problem sometimes occures if you delete curves or trim surfaces ......

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