[Mohamed911]

we are simulating a pump using ANSYS CFX ...
We need to generate streamlines, starting at center of each element on the inlet and export the data out. Therefore, if we have n elements on the inlet, n number of streamlines need to be generated. Then, we need to trace each streamline separately and export the relevant information (i.e, pressure, velocity, or any other user defined variable) out for further analysis.
We already created the streamlines at the center of each cell on the inlet in CFD-Post. Then, we exported the streamlines information out as .csv file. However, when we open the file in excel, it is impossible to see which points (nodes) are related to which streamline. We need to be able to distinguish the streamlines from each other.
In another word, we need an excel file, which has a format similar to the following:
Streamline 1
x y z variable1 variable 2 ...... variable m
(number of rows here depends on the number of nodes forming this particular streamline)
Streamline 2
x y z variable1 variable 2 ...... variable m
(number of rows here depends on the number of nodes forming this particular streamline)
.
.
.
.
up to the n-th streamline.

[ghorrocks]

On the streamline object, under the object tab there is an option "unique". Hopefully you can include this variable in the csv file you export because then it will be the streamline id number.

[Mohamed911]

Originally Posted by ghorrocks

On the streamline object, under the object tab there is an option "unique". Hopefully you can include this variable in the csv file you export because then it will be the streamline id number.

thank you for your suggestion ..
it's not possible to include the option unique when exporting streamlines data but I found that it's possible to include the streamline's number .. that exported data might be messy but it's not a problem to sort them based on the streamline's number

[Stel]

Originally Posted by Mohamed911

thank you for your suggestion ..
it's not possible to include the option unique when exporting streamlines data but I found that it's possible to include the streamline's number .. that exported data might be messy but it's not a problem to sort them based on the streamline's number

This is the easiest workaround I'm aware of. But certainly you can go fancier using CCL programming (Macros) with perl language. You can find some examples on the internet.

[Mohamed911]

Originally Posted by Stel

This is the easiest workaround I'm aware of. But certainly you can go fancier using CCL programming (Macros) with perl language. You can find some examples on the internet.

I never worked with that ... I guess I'll try try it

Thank you