CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > ANSYS Meshing & Geometry

[ICEM] problem icem cfd

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree2Likes
  • 2 Post By PSYMN

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 17, 2013, 12:37
Default problem icem cfd
  #1
Senior Member
 
tmeysam92
Join Date: Jun 2011
Posts: 135
Rep Power: 15
tmeysam92 is on a distinguished road
Hi all,

i meshed my geometry in ICEM CFD, and it contains a cylindrical part and a nozzle part.(see the picture)

the problem is that, i want to export mesh to fluent, but these two parts have different initial velocity in fluent. so how can i put different velocity for these two parts?
i mean what should i do in ICEM CFD boundary condition?
i have attached prj&blk&tin files.

tanks in advance.
Attached Images
File Type: jpg Untitledj.jpg (68.6 KB, 26 views)
Attached Files
File Type: zip file.zip (30.2 KB, 1 views)
tmeysam92 is offline   Reply With Quote

Old   February 17, 2013, 14:28
Default
  #2
Far
Senior Member
 
Sijal
Join Date: Mar 2009
Location: Islamabad
Posts: 4,558
Blog Entries: 6
Rep Power: 54
Far has a spectacular aura aboutFar has a spectacular aura about
Send a message via Skype™ to Far
Which two parts? Anyhow, you need to define part and there should be blocking for that part (you need to split blocking to that part if you need different BC)
Far is offline   Reply With Quote

Old   February 17, 2013, 14:48
Default
  #3
Senior Member
 
tmeysam92
Join Date: Jun 2011
Posts: 135
Rep Power: 15
tmeysam92 is on a distinguished road
Quote:
Originally Posted by Far View Post
Which two parts? Anyhow, you need to define part and there should be blocking for that part (you need to split blocking to that part if you need different BC)
thanks FAR,

you right, there are not two parts, i mean the cylinder and nozzle.

so, you mean i should use create part tool by using "blocking material, create part" for each one???
tmeysam92 is offline   Reply With Quote

Old   February 17, 2013, 14:50
Default
  #4
Far
Senior Member
 
Sijal
Join Date: Mar 2009
Location: Islamabad
Posts: 4,558
Blog Entries: 6
Rep Power: 54
Far has a spectacular aura aboutFar has a spectacular aura about
Send a message via Skype™ to Far
I mean geometry parts. you need to create in, out, wall etc.
Far is offline   Reply With Quote

Old   February 17, 2013, 15:10
Default
  #5
Senior Member
 
tmeysam92
Join Date: Jun 2011
Posts: 135
Rep Power: 15
tmeysam92 is on a distinguished road
Quote:
Originally Posted by Far View Post
I mean geometry parts. you need to create in, out, wall etc.
if you look at below picture you will understand what i mean.

i want to have different initial velocity in fluent for fluid 1 and fluid 2,

now what should i do?? is it right that i should use create body in geometry tab of icem cfd?
Attached Images
File Type: jpg Untitledjjj.jpg (68.4 KB, 16 views)
tmeysam92 is offline   Reply With Quote

Old   February 17, 2013, 17:00
Default
  #6
Far
Senior Member
 
Sijal
Join Date: Mar 2009
Location: Islamabad
Posts: 4,558
Blog Entries: 6
Rep Power: 54
Far has a spectacular aura aboutFar has a spectacular aura about
Send a message via Skype™ to Far
this can be done easily in Fluent .
Far is offline   Reply With Quote

Old   February 18, 2013, 00:52
Default
  #7
Senior Member
 
tmeysam92
Join Date: Jun 2011
Posts: 135
Rep Power: 15
tmeysam92 is on a distinguished road
Quote:
Originally Posted by Far View Post
this can be done easily in Fluent .
could you please explain more?
where in fluent??? is it right that i should use Patch tool in fluent???

thank you FAR.
tmeysam92 is offline   Reply With Quote

Old   February 18, 2013, 13:28
Default
  #8
Far
Senior Member
 
Sijal
Join Date: Mar 2009
Location: Islamabad
Posts: 4,558
Blog Entries: 6
Rep Power: 54
Far has a spectacular aura aboutFar has a spectacular aura about
Send a message via Skype™ to Far








Far is offline   Reply With Quote

Old   February 18, 2013, 19:02
Default
  #9
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
This is one of those times when "why?" would be a great question...

You should probably not be setting two velocities.

You should set the inlet velocity and the velocity in the nozzle will be calculated...

If you are just trying to speed things up and initialize with closer to final velocities, then you should be using the new hybrid initialization in Fluent... It basically generates a coarse background grid and then does a rough solve to work out initial velocities through the volume. These initial velocities are applied to the real solution as a great starting point.
cfd seeker and tmeysam92 like this.
__________________
-----------------------------------------
Please help guide development at ANSYS by filling in these surveys

Public ANSYS ICEM CFD Users Survey

This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)...

CFD Online Users Survey
PSYMN is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help icem cfd kakhtar ANSYS Meshing & Geometry 25 January 31, 2017 02:09
[ICEM] problem with meshing in icem cfd saurabhjoshi2011 ANSYS Meshing & Geometry 13 March 12, 2013 12:27
Batch mode ICEM CFD parametrization problem sportsfun ANSYS 0 December 19, 2012 15:20
Transport mesh from ICEM CFD, to Fluent, to Sysnoise Wieland FLUENT 2 April 15, 2012 07:28
ICEM CFD 5.1 problem with tetra count Baskaran CFX 2 March 13, 2006 13:59


All times are GMT -4. The time now is 03:33.