CFD Online Logo CFD Online URL
Home > Forums > FLUENT

floating point error with solar-calculator

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

LinkBack Thread Tools Display Modes
Old   November 2, 2011, 09:28
Default floating point error with solar-calculator
New Member
Join Date: Sep 2011
Posts: 3
Rep Power: 6
Bodiir is on a distinguished road
Hi all,

Im trying to use the solar-calculator in fluent. The model is a simle block (one volume, six faces, 8m x 10m x 15m).

Sadly i got some errors and problems and i cant find my mistake...

First of all i got the message:

Error: class CxFrameNT does not recognize attribute right-of.
Error: class CxFrameNT does not recognize attribute below.

when i read my casefile.

The second problem is, that i cant change the values under define->models->radiation [illumination parameters]. It would be best to calculate these parameters (Direct Solar Irradiation and Diffuse Solar Irradiation) with the solar calculator but it doesnt work. Also if i type a constant value and click ok the settings werent saved.

After all i got a "floating point error" each time i enable "use total irradiation from solar load model settings" under "boundary conditions"->semitransparent wall->"radiation".

I will add a summary with my settings. If you need more information please tell me. Im new in this forum and just worked a few weeks with Fluent.

Hope for your help
Thx a lot,


The casefile:

The summary:
Bodiir is offline   Reply With Quote

Old   February 8, 2012, 04:56
Default Floating error help
Join Date: Jan 2012
Posts: 58
Rep Power: 5
sheikh nasir is on a distinguished road
i am getting floating error:invalid number. I am working on train travelling in tunnel. Can any body help me. My email is

please help me
sheikh nasir is offline   Reply With Quote


calculator, cxframent, illumination, irradiation, solar

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
MPI Error - simpleFoam - Floating Point Exception scott OpenFOAM Running, Solving & CFD 3 April 13, 2012 16:34
block-structured mesh for t-junction Robert@cfd ANSYS Meshing & Geometry 20 November 11, 2011 05:59
Finished simulation doesn't start: floating point exception [Divide by zero] MaxCFD STAR-CCM+ 3 June 26, 2011 10:31
reactingFoam floating point exception pajofego OpenFOAM 0 November 6, 2010 18:29
Gmsh and samplesurface touf Open Source Meshers: Gmsh, Netgen, CGNS, ... 2 December 10, 2007 03:27

All times are GMT -4. The time now is 13:05.