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-   -   CFX Post vs. Tecplot (xy-graphs) (http://www.cfd-online.com/Forums/cfx/80731-cfx-post-vs-tecplot-xy-graphs.html)

Tobias October 5, 2010 05:00

CFX Post vs. Tecplot (xy-graphs)
 
Hello!

I want to make x-y-graphs of my CFX-Results, say the Pressure over the Length of a Polyline with constant Radius in a turbine.
In the past I did it by defining the polylines in a CFX-Post state file, then saving the values as .csv, editing with MS Excel an after that creating the x-y-plots.
Because I want to use Tecplot for creating the x-y-graphs now, it seems easier to use Tecplot as a post processor directly.

But now I can't see how to define polylines (as in CFX-Post) and make the graphs in Tecplot. Can anyone give me a little clue, or is'nt Tecplot the proper appliance for my tasks?

stumpy October 5, 2010 09:24

Why not just create the graphs in CFX-Post using the Chart feature?

Tobias October 5, 2010 09:35

I think the CFX Post graph feature may be OK to have a first look at the results, but I also want to compare the data of different result files.

scott_rumage October 5, 2010 19:13

Extract Polyline Add-on on TecplotTalk
 
Tobias,

You might explore whether the Tecplot extract polyline add-on would work for your application. Here is a link: http://www.tecplottalk.com/addons/ExtPrec/

Scott

Tobias October 6, 2010 04:45

Good idea! Not as comfortable as in CFX Post but this is the first way to define polylines in Tecplot I have found. I am wondering about that because I thought Tecplot360 is capable of analysing the flow results, so i thought it is obvious to include a feature for the definition of polylines.

michael_owen October 6, 2010 16:30

Quote:

Originally Posted by Tobias (Post 277899)
I think the CFX Post graph feature may be OK to have a first look at the results, but I also want to compare the data of different result files.

You can do this in CFD-Post.

Tobias October 7, 2010 01:37

OK, I can do this in CFX Post. But the way xy-graphs are displayed in Post is not sufficient for presenting them. Do you use the graphs made by CFX Post for any presentation?

michael_owen October 7, 2010 15:28

Quote:

Originally Posted by Tobias (Post 278196)
OK, I can do this in CFX Post. But the way xy-graphs are displayed in Post is not sufficient for presenting them. Do you use the graphs made by CFX Post for any presentation?

To be honest, no, I don't. I use Excel.

Tobias October 8, 2010 08:24

I have made an Excel Macro to change the CFX .csv tables into Tecplot format. Perhaps this is the best compromise in my case.
I think additionally to the problems with defining polylines there is the disadvantage of a very huge amount of data if you load the whole models into tecplot.
Thanks for all the ideas!


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