Dear, How can I compare two cases in Tecplot?

PYL-CFD · July 16, 2020, 04:37

Hello everybody,

I have export the data from FLUENT, and I would like to compare the delta from the two countors...

Here is my results
results.png

and here is the tutorial online
case_tutorial.jpg

I saw some researchers have post the method and steps as follow：

- Export the data from Fluent to Tecplot.
- Load both data sets into Tecplot.
- Data → Create Zone → Duplicate. Duplicate any zone you like, click OK.
- Data → Alter → Specify equations. Select the third zone. Write {VARNAME}={VARNAME}[2]-{VARNAME}[1], replacing VARNAME with the variable name of interest. Click Compute.

But I still can not generate it,

Does anybody know whether I can subtract these two cases in Tecplot?

wsfowler · July 21, 2020, 15:13

You have the basic steps correct. You load both datasets into the same frame in Tecplot 360, create a duplicate zone to hold the result and then you can do the subtraction as indicated. Both source zones need to have the same number of grid points, since Tecplot 360 node a point-by-point subtraction.

If you need further help you can always contact support@tecplot.com.

Scott

July 16, 2020, 04:37	Dear, How can I compare two cases in Tecplot?	#1
PYL-CFD New Member YUNLONG PENG Join Date: Jul 2020 Posts: 1 Rep Power: 0	Hello everybody, I have export the data from FLUENT, and I would like to compare the delta from the two countors... Here is my results results.png and here is the tutorial online case_tutorial.jpg I saw some researchers have post the method and steps as follow： - Export the data from Fluent to Tecplot. - Load both data sets into Tecplot. - Data → Create Zone → Duplicate. Duplicate any zone you like, click OK. - Data → Alter → Specify equations. Select the third zone. Write {VARNAME}={VARNAME}[2]-{VARNAME}[1], replacing VARNAME with the variable name of interest. Click Compute. But I still can not generate it, Does anybody know whether I can subtract these two cases in Tecplot?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to compare temperature difference at same position between two cases?	Dorasemon	FLUENT	3	December 19, 2018 05:54
OpenFOAM cellZones to tecplot zones	binomaiheu	Tecplot	0	January 14, 2015 11:24
Comparing cases in CFD-post : Using scalar speed	swaldman	CFX	2	April 11, 2014 11:12
How to read tecplot file witout tecplot ?	Pol	Tecplot	11	March 2, 2007 06:26
Tecplot can't read data file from Fluent.	stephen	FLUENT	8	November 21, 2001 20:27

July 21, 2020, 15:13		#2
wsfowler Senior Member Scott Fowler Join Date: May 2009 Posts: 112 Rep Power: 16	You have the basic steps correct. You load both datasets into the same frame in Tecplot 360, create a duplicate zone to hold the result and then you can do the subtraction as indicated. Both source zones need to have the same number of grid points, since Tecplot 360 node a point-by-point subtraction. If you need further help you can always contact support@tecplot.com. Scott