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

RPI wall boiling model

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 25, 2007, 19:01
Default RPI wall boiling model
  #1
bogesz
Guest
 
Posts: n/a
Dear all,

I'm looking for some help from people who are familiar with the RPI Wall boiling model custom CFX solver supplement. (

I am trying to model boiling in a heated tube. The problem is set up as described in the provided examples and documentation, two fluids with constant properties, etc.

My problem is the following: Depending on the problem (or on the model) the calculation crashes after some number of iterations following a huge number repetitions of the following message:

" cal_TSUP1 WARNING: Changing upper bound for heat partition algorithm "

and at the end the error message is the following:

" ERROR #001100279 has occurred in subroutine ErrAction. Message: Heat partitioning algorithm failed to fix upper bound of bisection

Details of error:- ---------------- Error detected by routine FNDFIL CFNAME = * CRESLT = OLD

Current Directory : /FLOW/SOLUTION/TSTEP956/CLOOP1/ZN1/VERTICES

"

Any help would be appreciated.

Thanks Bogdan
  Reply With Quote

Old   January 17, 2011, 04:55
Default
  #2
New Member
 
Ali Emadi
Join Date: Jan 2011
Posts: 18
Rep Power: 6
aliemadi is on a distinguished road
Dear Bogdan
I have this problem in a exactly similar condition.I examined different condition to may solve this problem but this also exist. Did your problem has been solved?
Regard
Ali Emadi
aliemadi is offline   Reply With Quote

Old   September 8, 2011, 23:10
Default
  #3
New Member
 
dai yuejin
Join Date: Aug 2011
Posts: 1
Rep Power: 0
dyj3516 is on a distinguished road
Dear Ali
I have just encoutered this problem.Have you solved it?
dyj3516 is offline   Reply With Quote

Old   September 11, 2011, 08:42
Default
  #4
New Member
 
Ali Emadi
Join Date: Jan 2011
Posts: 18
Rep Power: 6
aliemadi is on a distinguished road
Quote:
Originally Posted by dyj3516 View Post
Dear Ali
I have just encoutered this problem.Have you solved it?
Dear Friend
I couldn't solve this problem fortunately.
aliemadi is offline   Reply With Quote

Old   January 4, 2013, 03:35
Default wall superheat bisection algorithm fails
  #5
New Member
 
P. Zhang
Join Date: Jan 2013
Posts: 2
Rep Power: 0
thermal0 is on a distinguished road
Dear all,
I met a very similar case.
when I calculate an unsteady case with RPI model on and relative large wall heat flux, I got this error message:

Wall superheat bisection algorithm failed to converge. Continue with wall superheat = 1.0000072E-01 of minimum relative error = 4.5705986E-2

With steady state or low wall heat flux, the calculation is OK.
Is anyone know how to fix it?

Thanks

Zhang Peng
thermal0 is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Near wall treatment in k-omega SST Arnoldinho OpenFOAM Running, Solving & CFD 37 June 9, 2015 09:35
UDF for wall slipping HFLUENT Fluent UDF and Scheme Programming 0 April 27, 2011 12:03
3-D turbulence model with wall function Henry Main CFD Forum 7 May 19, 2006 10:40
ke-two-layer model and wall function Wilson Phoenics 1 March 23, 2005 07:12
k-w SST model wall conditions Sheila CD-adapco 4 March 12, 2005 04:55


All times are GMT -4. The time now is 20:16.