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

Interruption by signal HUP (1)

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 14, 2010, 05:05
Default Interruption by signal HUP (1)
  #1
New Member
 
ravi kiran
Join Date: Dec 2009
Location: Chennai- India
Posts: 7
Rep Power: 16
Ravikiran is on a distinguished road
Hi,

I am working on a fluid-solid thermal analysis project.

Brief: A big cylinder ( 20 m length and .5 m dia ) with around 900 inlets and 2 outlets. Supersaturated Steam of diff temps and mass flow rates enter through various inlets and mixes in the stomach of cylinder, comes out through 2 outlets.

Aim is to get a temperature distribution in fluid and sold material.

I have used ICEM CFD to mesh then exported it to CFX. Defined Boundary conditions as required. When i give run, i encounter an error msg as follows:


** MXLOOP TOO SMALL
** Error concerns TT data for .PROLOGUE:
STOP called from routine PROCESS_OBJECT

F:\Program Files\ANSYS Inc\v120\CFX\bin\winnt-amd64\cclsetup.exe
was interrupted by signal HUP (1)



PS: I attach output file too for reference.

Please help me out of this. ( I am a newbie in CFD )

Thank you.
Attached Files
File Type: zip basicmodel2withparts_001.zip (12.9 KB, 8 views)
Ravikiran is offline   Reply With Quote

Old   February 14, 2010, 06:28
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,655
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
I am guessing here but I suspect you may have run into a limitation in the amount of CCL it can load. Does it work fine if you do the same simulation with only half (or a quarter) of the number of inlets? If that works then I think you have hit a CCL limitation.

If this is the case then your only option is to group inlets together with the same conditions into reduce the number of inlets. If this is not possible you should talk to CFX support.
ghorrocks is offline   Reply With Quote

Old   February 14, 2010, 09:52
Default !!
  #3
New Member
 
ravi kiran
Join Date: Dec 2009
Location: Chennai- India
Posts: 7
Rep Power: 16
Ravikiran is on a distinguished road
Yes Ghorrocks,

It worked fine with half and lesser number of inlet boundary conditions. But now i cant group inlets together.

Any way of expanding CCL limitation? Or any other solution?


Thank you.
Ravikiran is offline   Reply With Quote

Old   February 14, 2010, 18:33
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,655
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
In that case your only option is to talk to CFX support.
ghorrocks is offline   Reply With Quote

Old   February 15, 2010, 17:16
Default
  #5
Senior Member
 
Join Date: Mar 2009
Location: Europe
Posts: 169
Rep Power: 16
joey2007 is on a distinguished road
beyond the command line options of cfx5solve there is one named -sizeccl factor or similar. It may help. Please give feed back ....
joey2007 is offline   Reply With Quote

Old   February 16, 2010, 02:46
Default -sizeccl
  #6
New Member
 
ravi kiran
Join Date: Dec 2009
Location: Chennai- India
Posts: 7
Rep Power: 16
Ravikiran is on a distinguished road
Hi joey,


Tried changing size factor. No use
Ravikiran is offline   Reply With Quote

Old   February 16, 2010, 18:33
Default
  #7
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,655
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
Have you talked to CFX Support yet?
ghorrocks is offline   Reply With Quote

Old   February 17, 2010, 02:07
Default
  #8
New Member
 
ravi kiran
Join Date: Dec 2009
Location: Chennai- India
Posts: 7
Rep Power: 16
Ravikiran is on a distinguished road
Hi Ghorrocks,

I have mailed my query to ansysinfo@ansys.com

No reply yet. Do you have any other contact info of Ansys-CFX support?

Thank you.
Ravikiran is offline   Reply With Quote

Old   February 17, 2010, 08:02
Default
  #9
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,655
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
I think that email address is the sales address. If you have a paid-up tech support contract you will have been given an email/phone number to access CFX support. If not, well this is why you buy tech support.
ghorrocks is offline   Reply With Quote

Old   February 17, 2010, 11:32
Default
  #10
New Member
 
Join Date: Mar 2009
Posts: 7
Rep Power: 17
Siva_aero is on a distinguished road
cfdsup-india@ansys.com
Siva_aero is offline   Reply With Quote

Old   February 22, 2010, 01:42
Default hi
  #11
New Member
 
ravi kiran
Join Date: Dec 2009
Location: Chennai- India
Posts: 7
Rep Power: 16
Ravikiran is on a distinguished road
Hey ghorrocks,

I got a reply and a call from cfx support. They say there is a limit on educational version.

So i have grouped inlets in to fewer numbers , as you suggested, and could get the temperature distribution for both the domains.

I have a doubt here, when i define a boundary condition and select some 3 inlet faces for it. Will the inlet mass flow rate given to this boundary condition gets divided among these inlets or will it remain the same for all the three inlets?

And can you please guide me how to export this temperatures to ansys structural and apply as loads i.e, instructions on export, import,etc..

If there are any specific tutorial for this, tell me where can i find them.


Thank you very much in advance.

Ravi kiran.
Ravikiran is offline   Reply With Quote

Reply

Tags
signal hup (1)

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
how to get a real signal by inverse FFT xijing Main CFD Forum 3 May 31, 2011 06:25
Signal decay in les channel flow pankaj saha Main CFD Forum 0 July 25, 2008 13:34
Recognizing a random signal cfd_newbie FLUENT 3 January 10, 2008 18:26
received fatal signal brusly FLUENT 1 April 12, 2007 13:49
Killed by signal 8 after first timestep matthias OpenFOAM Running, Solving & CFD 0 December 9, 2005 09:06


All times are GMT -4. The time now is 06:19.