meshing and boundary condition

no183 · January 6, 2011, 09:15

i already done it..
http://rapidshare.com/files/441109902/testv2.zip
have a look whather is correct or not, i feel like something strange, why did the PSU top part, FDD front part, CD ROM front part is gone.

no183 · January 6, 2011, 09:15

i already done it..
http://rapidshare.com/files/441109902/testv2.zip
have a look whather is correct or not, i feel like something strange, why did the PSU top part, FDD front part, CD ROM front part is gone.

-mAx- · January 6, 2011, 09:26

I cannot download your file yet, but I will tonight at home.
Here is what I have after the substract operation.
Outter domain's surface are hidden
Sans titre.png

no183 · January 6, 2011, 09:38

is ok bro, take your time. I really appreciate your help and patience for my weakness.
Anyway, is there any tutorial for gambit, which cover everything i mean. The original turotial which school given to us, is SUX. cover nothing, and all is easy stuff, which cover in CAD like subtract, unite how to draw only.. do u have any tutorial bro?
oh yea, bro i saw ur pic, i mean the file u uploaded. I still not sure whether mine is correct, but when i see yours, i still can see there is 2 hole at the drive bay (1 at 5"25 1 at 3"5). It is closed. I remember i draw it on solidwork, it is closed.

-mAx- · January 6, 2011, 09:48

provide me your step file (from solidworks) and your tutorial
I will check if it really SUX...

no183 · January 6, 2011, 19:50

There u go, this is the actual project file.. neglect all the file i upload before..
http://rapidshare.com/files/441201516/Desktop.zip
about the tutorial, it is a hardcopy which i copy from what lecturer has done during the lecture

-mAx- · January 7, 2011, 01:14

-what is the difference between the 2 step files?
-On those 2 files, there are more parts which don't appear in your dbs file (like fans, etc...)
Is it deliberate?
Anyway, you need to do the same thing: creating surrounding box and substracting solid elements.

no183 · January 7, 2011, 13:59

sorry for the late reply, my line was down for whole day.
Yes, the 2 step file is different from the dbs i gave u previously. The dbs file was the first version of my drawing, just ingore the dbs file. Just help me with these 2 step file, i need to know how to do it. I already try the idea u mentioned, but fail

-mAx- · January 10, 2011, 01:49

* Import your step file
* unite all the volumes
*create the surrounding box
* substract the united volumes FROM the box

no183 · January 10, 2011, 09:05

the uniting process take long time huh. the surrounding box is the box i create like last time ? Just a cube closing the whole case?

-mAx- · January 10, 2011, 09:08

Quote:

Originally Posted by no183

the uniting process take long time huh.

yes

Quote:

Originally Posted by no183

the surrounding box is the box i create like last time ? Just a cube closing the whole case?

yes

no183 · January 10, 2011, 09:10

is it just the 4 step as what u say? unite everything, then subtract the volume? i get subtracting volume to from volume 1 give empty result, FOR BOTH CASE.

-mAx- · January 10, 2011, 09:19

you created the surroundig box after you united all solid volumes (from your import), right?
Then create the surrounding box.
Then go to substract Real Volumes, and pick the surroundig box in the first panel ("Volume")
Finally choose the united volume in the second panel ("Substract Volumes")
If you don't succeed, post a picture from your gambit window after the substract operation

no183 · January 10, 2011, 09:19

hey, where did u learn ur fluent? i mean from zero knowledge to such a level today.

-mAx- · January 10, 2011, 09:23

Quote:

Originally Posted by no183

hey, where did u learn ur fluent? i mean from zero knowledge to such a level today.

By experiencing problems and fixing them, you will learn a lot.

no183 · January 10, 2011, 09:31

ok, i manage to do it already. what next? btw, i dont even have the basic, how do experiencing problem and fix them

-mAx- · January 10, 2011, 09:41

Ok if your fluid domain is ready, you can try to mesh it on the fly (it will fail) but all the warnings and errors you will get in the transcript fwindow will be usefull.
You will be able to localize small edges, sharp angles, etc...
But prior to mesh it, I would do a basic tutorial. Send me your email, I will send your a tutorial

no183 · January 10, 2011, 09:43

sent the pm to u

no183 · January 10, 2011, 10:01

so u want i do everything inside d tutorial?

no183 · January 10, 2011, 10:02

Hey, it is the official FLUENT tutorial, can i have all of it ? Unforunately i dont have it as my Institution never give us the tutorial.

January 6, 2011, 09:26		#23
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	I cannot download your file yet, but I will tonight at home. Here is what I have after the substract operation. Outter domain's surface are hidden Sans titre.png __________________ In memory of my friend Hervé: CFD engineer & freerider

January 6, 2011, 09:48		#25
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	provide me your step file (from solidworks) and your tutorial I will check if it really SUX... __________________ In memory of my friend Hervé: CFD engineer & freerider

January 7, 2011, 01:14		#27
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	-what is the difference between the 2 step files? -On those 2 files, there are more parts which don't appear in your dbs file (like fans, etc...) Is it deliberate? Anyway, you need to do the same thing: creating surrounding box and substracting solid elements. __________________ In memory of my friend Hervé: CFD engineer & freerider

January 10, 2011, 01:49		#29
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	* Import your step file * unite all the volumes create the surrounding box substract the united volumes FROM the box __________________ In memory of my friend Hervé: CFD engineer & freerider

January 10, 2011, 09:19		#33
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	you created the surroundig box after you united all solid volumes (from your import), right? Then create the surrounding box. Then go to substract Real Volumes, and pick the surroundig box in the first panel ("Volume") Finally choose the united volume in the second panel ("Substract Volumes") If you don't succeed, post a picture from your gambit window after the substract operation __________________ In memory of my friend Hervé: CFD engineer & freerider

January 6, 2011, 09:15		#21
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	i already done it.. http://rapidshare.com/files/441109902/testv2.zip have a look whather is correct or not, i feel like something strange, why did the PSU top part, FDD front part, CD ROM front part is gone.

January 6, 2011, 09:38		#24
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	is ok bro, take your time. I really appreciate your help and patience for my weakness. Anyway, is there any tutorial for gambit, which cover everything i mean. The original turotial which school given to us, is SUX. cover nothing, and all is easy stuff, which cover in CAD like subtract, unite how to draw only.. do u have any tutorial bro? oh yea, bro i saw ur pic, i mean the file u uploaded. I still not sure whether mine is correct, but when i see yours, i still can see there is 2 hole at the drive bay (1 at 5"25 1 at 3"5). It is closed. I remember i draw it on solidwork, it is closed.

January 6, 2011, 19:50		#26
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	There u go, this is the actual project file.. neglect all the file i upload before.. http://rapidshare.com/files/441201516/Desktop.zip about the tutorial, it is a hardcopy which i copy from what lecturer has done during the lecture

January 7, 2011, 13:59		#28
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	sorry for the late reply, my line was down for whole day. Yes, the 2 step file is different from the dbs i gave u previously. The dbs file was the first version of my drawing, just ingore the dbs file. Just help me with these 2 step file, i need to know how to do it. I already try the idea u mentioned, but fail

January 10, 2011, 09:05		#30
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	the uniting process take long time huh. the surrounding box is the box i create like last time ? Just a cube closing the whole case?

January 10, 2011, 09:10		#32
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	is it just the 4 step as what u say? unite everything, then subtract the volume? i get subtracting volume to from volume 1 give empty result, FOR BOTH CASE.

January 10, 2011, 09:31		#36
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	ok, i manage to do it already. what next? btw, i dont even have the basic, how do experiencing problem and fix them

January 10, 2011, 09:41		#37
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	Ok if your fluid domain is ready, you can try to mesh it on the fly (it will fail) but all the warnings and errors you will get in the transcript fwindow will be usefull. You will be able to localize small edges, sharp angles, etc... But prior to mesh it, I would do a basic tutorial. Send me your email, I will send your a tutorial __________________ In memory of my friend Hervé: CFD engineer & freerider

January 10, 2011, 09:43		#38
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	sent the pm to u

January 10, 2011, 10:01		#39
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	so u want i do everything inside d tutorial?

January 10, 2011, 10:02		#40
no183 Member no183 Join Date: Sep 2010 Posts: 81 Rep Power: 15	Hey, it is the official FLUENT tutorial, can i have all of it ? Unforunately i dont have it as my Institution never give us the tutorial.

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