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CFX Post vs. Tecplot (xy-graphs)

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Old   October 5, 2010, 05:00
Default CFX Post vs. Tecplot (xy-graphs)
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Tobias Krawuttke
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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?
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Old   October 5, 2010, 09:24
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Why not just create the graphs in CFX-Post using the Chart feature?
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Old   October 5, 2010, 09:35
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Tobias Krawuttke
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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.
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Old   October 5, 2010, 19:13
Default Extract Polyline Add-on on TecplotTalk
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Scott Rumage
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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
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Old   October 6, 2010, 04:45
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Tobias Krawuttke
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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.
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Old   October 6, 2010, 16:30
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Michael P. Owen
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Quote:
Originally Posted by Tobias View Post
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.
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Old   October 7, 2010, 01:37
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Tobias Krawuttke
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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?
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Old   October 7, 2010, 15:28
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Quote:
Originally Posted by Tobias View Post
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.
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Old   October 8, 2010, 08:24
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Tobias Krawuttke
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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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