[pietrobellezza]

Hi, I'm new in Star CCM+ and i'd like to know if the software gives an output file and if so, how to read it. I mean, I want to know the value for example of temperature in every node I've meshed my element.
Thanks
Pietro

[rwryne]

Originally Posted by pietrobellezza

Hi, I'm new in Star CCM+ and i'd like to know if the software gives an output file and if so, how to read it. I mean, I want to know the value for example of temperature in every node I've meshed my element.
Thanks
Pietro

For your example, you can create a table (Tools->Tables) and export it to CSV. It would be of X,Y,Z, T format

[abdul099]

The default output just contains values for your residuals and user created monitors.

It's possible to export the solution to a csv file, like rwryne suggested. But it will be a huge file, depending on your cell count. There will be one value for every cell of your volume mesh. I can't imagine any case to use this except mapping (please correct me when I'm wrong) - but for this case, there might be easier ways.
When you need values for only a low number of points, it might be easier to do it with point probes/ line probes / presentation grids.

[pietrobellezza]

Thank you all very much! My purpose infact is to obtain the temperature map of some surfaces of one body, and to export it to a FEM software, like Nastran. So I'd like to associate the temperature to the nodes in such a way that the FEM software recognize it automatically. Have you ever had cases like this?

[rwryne]

Originally Posted by pietrobellezza

Thank you all very much! My purpose infact is to obtain the temperature map of some surfaces of one body, and to export it to a FEM software, like Nastran. So I'd like to associate the temperature to the nodes in such a way that the FEM software recognize it automatically. Have you ever had cases like this?

Yes, it is actually a pretty simple process if your NASTRAN geometry matches your STAR geometry.

You can export your NASTRAN mesh as a *.BDF file and import it directly into STAR (File->Import->Import CAE Model) and then use data mappers (under Tools) to map the data to the NASTRAN mesh. Then you can export the data directly back onto the BDF and import it back into Patran (assuming that is what you are using for your preprocessor).

Give these basic instructions a try and let me know if you need help on specific steps.

[pietrobellezza]

Thank you very much, I'll try soon! I'll let you know if there are problems!

[rwryne]

Originally Posted by pietrobellezza

Thank you very much, I'll try soon! I'll let you know if there are problems!

One thing I forgot to mention is that the export process for NASTRAN files has been under development for the past few versions. Which version of STAR are you using?

For example, you could not export temperatures in version...5.02 I think?

[Mgolse]

Originally Posted by abdul099

The default output just contains values for your residuals and user created monitors.

It's possible to export the solution to a csv file, like rwryne suggested. But it will be a huge file, depending on your cell count. There will be one value for every cell of your volume mesh. I can't imagine any case to use this except mapping (please correct me when I'm wrong) - but for this case, there might be easier ways.
When you need values for only a low number of points, it might be easier to do it with point probes/ line probes / presentation grids.

What if my boundary is curved? Is the only option to export the boundary temperature data?

[abdul099]

When your boundary is curved, it's not flat.
You can export any vector or scalar from CCM+.

[Anon23]

Originally Posted by rwryne

Yes, it is actually a pretty simple process if your NASTRAN geometry matches your STAR geometry.

You can export your NASTRAN mesh as a *.BDF file and import it directly into STAR (File->Import->Import CAE Model) and then use data mappers (under Tools) to map the data to the NASTRAN mesh. Then you can export the data directly back onto the BDF and import it back into Patran (assuming that is what you are using for your preprocessor).

Give these basic instructions a try and let me know if you need help on specific steps.

I tried this but I'm encountering this error, can anyone help me with this.









-----------------------------------

Import Mode : Append
Data Checking : Standard
-----------------------------------


*** 03:12:46 ***
Parsing input file...
...There are 9972 lines in the dat files (and all included files)
Input file parsed

*** 03:12:46 ***
Evaluating bulk data cards...
Bulk data cards evaluated

*** 03:12:46 ***
Reading Case Control information...
...Input file contains unsupported keywords above the first subcase
...Total of 1 cards skipped.

Case Control information processed

*** 03:12:46 ***
Setting solver file unit system...
...Searching solver file for PARAM,UNITSYS card...

***WARNING : Unable to recover PARAM,UNITSYS card. Solver file unit system
defaulting to (mN)(mm)(kg)Celsius

Solver file unit system set

*** 03:12:46 ***
Reading load data...
Load data processed

*** 03:12:46 ***
Reading physical property data...
Physical property data processed

*** 03:12:46 ***
Assembling case control data...
...Append operation processing fem entities of analysis type 'Structural'
...Creating a solution of analysis type 'Structural'
...Import selective loads as a field data
Case control data assembled

***WARNING : Missing or unsupported SOL card. Importing as a solution SOL 101
of analysis type Structural. Consider adding a supported SOL card
to the executive control section of the solver file.


*** 03:12:46 ***
Assembling case control SET data...
Case control SET data assembled...

*** 03:12:46 ***
Assembling element data...

*** 03:12:46 ***
Assembling load and constraint data...
...Processing PLOAD4 loads...

***ERROR : Invalid element type or missing element on a PLOAD4 . First
occurrence is PLOAD4 105 referring to thin shell element 1

Load and constraint data assembled

*** 03:12:46 ***
Assembling solution information...
...Solver set to Simcenter Nastran...
...Analysis type set to Structural...
...Solution type set to SOL 101 Linear Statics...
...Solution name set to 'Mapped pressure'...
...Processing solver parameters...
...Processing solution attributes...
......Adopting output requests...
...Processing global constraints...
...Processing global simulation objects...
...Processing global loads...
Solution information assembled

*** 03:12:46 ***
---------------------
ANALYSIS OF BULK DATA
---------------------
************************************************** **************
* Card | Cards | Entities | Min Id | Max Id *
* Name | Recognized | Imported | | *
************************************************** **************
* PLOAD4 | 9972 | 0 | | *
************************************************** **************


--------------------
SUMMARY OF BULK DATA
--------------------


************************************************** ***********
* Entity | Number | Min Id | Max Id *
* | Imported | | *
************************************************** ***********
************************************************** ***********

>>> 2 Warnings found
>>> 1 Errors found

Errors encountered processing Nastran model

*** 03:12:46 ***
Uploading Nastran model to Simcenter

*** 03:12:46 ***
Nastran model uploaded to Simcenter

*** 03:12:46 ***
Import Complete