CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

creating probe on surface to find temperature

Register Blogs Community New Posts Updated Threads Search

Like Tree2Likes
  • 2 Post By rwryne

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 23, 2012, 20:24
Default creating probe on surface to find temperature
  #1
Member
 
adam
Join Date: Oct 2011
Posts: 52
Rep Power: 14
sieginc. is on a distinguished road
I'm trying to measure temperature at a single point on a surface. I create a point under derived parts and snap it to that particular face, and then move it into position. Then I go to reports and select "maximum" and "temperature" and then for parts I select the point of interest. The problem I'm having is that for some of the probes, I'm getting astronomically high temperature values even though in my scalar scene of my surface this is not the case. Some of the probes are working fine and the values are reasonable. What could be the cause of this problem? Is there a better way to measure temperature at a single point?
sieginc. is offline   Reply With Quote

Old   June 24, 2012, 04:20
Default
  #2
Senior Member
 
Join Date: Oct 2009
Location: Germany
Posts: 636
Rep Power: 21
abdul099 is on a distinguished road
When you get values of Xe+38 or Xe-38, your probe is simply outside the domain. Every computer has a limited precision, so placing a probe on a surface does not necessarily mean, it is ON the surface - just close to it. It might be slightly away in either direction.
Check what happens when you snap your probe and move it afterwards, it might happen the third direction is not updated and therefore it's no longer snapped... When that's the case, just move your probe inside the domain.
__________________
We do three types of jobs here:
GOOD, FAST AND CHEAP
You may choose any two!
abdul099 is offline   Reply With Quote

Old   June 25, 2012, 08:16
Default
  #3
Senior Member
 
Ryne Whitehill
Join Date: Aug 2009
Posts: 312
Rep Power: 18
rwryne is on a distinguished road
Quote:
Originally Posted by sieginc. View Post
I'm trying to measure temperature at a single point on a surface. I create a point under derived parts and snap it to that particular face, and then move it into position. Then I go to reports and select "maximum" and "temperature" and then for parts I select the point of interest. The problem I'm having is that for some of the probes, I'm getting astronomically high temperature values even though in my scalar scene of my surface this is not the case. Some of the probes are working fine and the values are reasonable. What could be the cause of this problem? Is there a better way to measure temperature at a single point?
]

If you are not needing to be super accurate with position and not needing to be consistent across multiple simulations, just point your Mouse Cursor at the point and hit the period (.) key on a Scalar scene. This will report the (x,y,z) values and the scalar.
bikooo3878 and wegner like this.
rwryne is offline   Reply With Quote

Reply


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
Error: Negative volume and Creating empty surface Faby FLUENT 26 December 12, 2023 09:06
Temperature distribution over a boiling surface netmaster STAR-CCM+ 0 December 16, 2011 05:08
Problem Building OF on Centos cluster (no admin rights) CKH OpenFOAM Installation 5 November 13, 2011 06:32
Normal - Helical Surface m. malik Main CFD Forum 3 February 3, 2006 12:56
I wish to find the proper model to validate the temperature field. G.H.Lee Main CFD Forum 1 May 6, 1999 02:05


All times are GMT -4. The time now is 08:59.