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Search: Posts Made By: -mAx-
Forum: FLUENT March 9, 2011, 04:40
Replies: 139
Views: 12,834
Posted By -mAx-
From now you should open a new thread. Other...

From now you should open a new thread.
Other people could help you more than I can, because I am not so experienced with thermal stuffs.
Anyway the 2 first tutorials in Fluent (6.3) are heat...
Forum: FLUENT March 8, 2011, 07:04
Replies: 139
Views: 12,834
Posted By -mAx-
http://my.fit.edu/itresources/manuals/gambit2.3/he...

http://my.fit.edu/itresources/manuals/gambit2.3/help/html/modeling_guide/mg0502.htm
Forum: FLUENT March 7, 2011, 04:33
Replies: 139
Views: 12,834
Posted By -mAx-
you can fix most cells with size function: All...

you can fix most cells with size function:
All your cells are attached to thin surfaces, which give cells som stretched aspect.
If you apply a size function with those surfaces as source, then I am...
Forum: FLUENT March 4, 2011, 09:07
Replies: 139
Views: 12,834
Posted By -mAx-
display your mesh on your surface wall. If you...

display your mesh on your surface wall.
If you want to see your mesh inside your domain, you may use sweep surface.
Or you can use the plane in Examine Mesh (Gambit)
Forum: FLUENT March 2, 2011, 08:14
Replies: 139
Views: 12,834
Posted By -mAx-
is your mesh full tetra or tetra-hexcore? If it...

is your mesh full tetra or tetra-hexcore?
If it is full tetra, then switch to tetra-hexcore.
Your mesh size will decrease
Forum: FLUENT March 2, 2011, 02:27
Replies: 139
Views: 12,834
Posted By -mAx-
if you cannot load your mesh and you run out of...

if you cannot load your mesh and you run out of memory, then you are on limits from your hadware.
Reduce your mesh or, load it on a more powerfull pc
Forum: FLUENT March 1, 2011, 07:12
Replies: 139
Views: 12,834
Posted By -mAx-
yes, serial means you run your model on one cpu. ...

yes, serial means you run your model on one cpu.
If you get element with skewness > 0.97, then you have probbilities that the check mesh in fluent will fail. And if fluent enables you tostart the...
Forum: FLUENT March 1, 2011, 01:45
Replies: 139
Views: 12,834
Posted By -mAx-
set lower value at 0.9 and update (examine mesh...

set lower value at 0.9 and update (examine mesh panel)
it will return how many cells are above skewness 0.9.
if you get 0 cell or very few (but with skewness less than 0.95), than I can imagine...
Forum: FLUENT February 28, 2011, 10:18
Replies: 139
Views: 12,834
Posted By -mAx-
you are running out of memory. Before exporting...

you are running out of memory.
Before exporting your mesh, did you check its quality? (in Gambit: Examine Mesh)
Forum: FLUENT February 28, 2011, 02:15
Replies: 139
Views: 12,834
Posted By -mAx-
No the volumes are not the same. Only outer...

No the volumes are not the same. Only outer surfaces are the same.
From your flow domain you already substracted this fan. I can see it, because when you pick the whole flow domain, outer surfaces...
Forum: FLUENT February 25, 2011, 10:16
Replies: 139
Views: 12,834
Posted By -mAx-
you want to split your domain with HDD volume,...

you want to split your domain with HDD volume, etc...?
Forum: FLUENT February 25, 2011, 09:08
Replies: 139
Views: 12,834
Posted By -mAx-
grid refinement >> check help

grid refinement >> check help
Forum: FLUENT February 25, 2011, 09:01
Replies: 139
Views: 12,834
Posted By -mAx-
you are free to split your domain as you want. ...

you are free to split your domain as you want.
Regarding the size fonction, it is not necessary to use them, but it is very helpful for controling the mesh refinement
Forum: FLUENT February 25, 2011, 08:19
Replies: 139
Views: 12,834
Posted By -mAx-
no you don't need step 3

no you don't need step 3
Forum: FLUENT February 25, 2011, 05:14
Replies: 139
Views: 12,834
Posted By -mAx-
1- split your volume where you think you need to...

1- split your volume where you think you need to refine your mesh, and where you think you can apply an hexa mesh (simple geometries like cube, cylinder etc...)
2- yes
3- no, don't merge back your...
Forum: FLUENT February 25, 2011, 01:25
Replies: 139
Views: 12,834
Posted By -mAx-
yes you only have one volume, that's why I...

yes you only have one volume, that's why I adviced you to split it into several small volumes.
>>>Volume/Split
Forum: FLUENT February 24, 2011, 09:53
Replies: 139
Views: 12,834
Posted By -mAx-
you are trying to mesh a complex volume in one...

you are trying to mesh a complex volume in one shot (you'll never succeed in that way)
you need to split your volume into subvolumes.
And you gave an element size which is very small.
So split...
Forum: FLUENT February 24, 2011, 03:30
Replies: 139
Views: 12,834
Posted By -mAx-
you are trying to mesh your face (complex one)...

you are trying to mesh your face (complex one) with quad.
Forget trying to mesh your volume with hexa.
Switch with tetra (tri for surface mesh)
Forum: FLUENT February 9, 2011, 10:00
Replies: 139
Views: 12,834
Posted By -mAx-
with 2 elements, it shouldn't be slow. With...

with 2 elements, it shouldn't be slow.
With 10miilions volume elements, then yes, you can pray that your session won't crash.
Forum: FLUENT February 9, 2011, 09:40
Replies: 139
Views: 12,834
Posted By -mAx-
your volume mesh failed, that's why you cannot...

your volume mesh failed, that's why you cannot see any volume elements (because you don't have any)
do the same but with 2d elements
Forum: FLUENT February 9, 2011, 09:15
Replies: 139
Views: 12,834
Posted By -mAx-
go to range select all kind of elements...

go to range
select all kind of elements (hexa/pyramid/wedge/tetra)
set lower limit to 0.9
set upper limit to 1
and display...
all the displayed element should be fixed (especially elements...
Forum: FLUENT February 9, 2011, 08:51
Replies: 139
Views: 12,834
Posted By -mAx-
direct above your windows clock

direct above your windows clock
Forum: FLUENT February 9, 2011, 08:40
Replies: 139
Views: 12,834
Posted By -mAx-
when you started with import: delete fan's...

when you started with import: delete fan's volumes before substracting
Forum: FLUENT February 9, 2011, 08:18
Replies: 139
Views: 12,834
Posted By -mAx-
Examine face face.3086, you will see that skewed...

Examine face face.3086, you will see that skewed cells are linked with topology "issue" like sharge angle etc...
Use merge tools for fixing this problem.
Then same thing with face face.2557,...
Forum: FLUENT February 8, 2011, 07:32
Replies: 139
Views: 12,834
Posted By -mAx-
yes you can

yes you can
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