Average flow temperature

Lerma · August 17, 2016, 06:53

I'm moddeling a simple pipe 1 m length heated by external heat source.

Is it possible in star-ccm+ to plot some surface average values (temperature/velocity/pressure) over specified direction?

I can make a cross-section and report surface average temperature on this section, but I this way I'll have to do over 200 reports to make a plot.

hernanj · June 4, 2022, 14:01

Hi, did you figure out how to do it? I need something similar and I can't find an efficient way.

fluid23 · June 6, 2022, 08:46

nevermind - I didn't read that very well.

you might be able to do that with a presentation plane

cwl · June 6, 2022, 19:19

Quote:

Originally Posted by fluid23

you might be able to do that with a presentation plane

What do you mean by - presentation plane?

fluid23 · June 7, 2022, 16:27

Quote:

Originally Posted by cwl

What do you mean by - presentation plane?

My bad, I am turned around on this. I have been training on ANSYS lately and I was conflating presentation grid in star-ccm (which allows you to sample a region at regular intervals) with a similar capability in Ansys EnSight (I think it was EnSight anyway). It's all becoming one big blur, obviously.

Sorry for the confusion.

cwl · June 7, 2022, 18:41

Ew, what made you deal with Ansys? %)

fluid23 · June 7, 2022, 19:01

haha... my corporate overlords decreed that it be so. they were already maintaining licenses for both Ansys and Star-CCM and they (shockingly) came to the conclusion that it was cheaper to pay for only one.

cwl · June 7, 2022, 19:06

Oh, no, that sounds like lots of suffering coming %)

The last time I was dealing with Ansys years ago - in Fluent anything user-defined had to be written in C and pre-compiled with hardly any possibilities to debug and CFX had a constantly freezing UI from 90's - so most of the time was spent on dealing with the software instead of solving the task ... 0_₀

fluid23 · June 7, 2022, 19:20

My original experience with Fluent (over a decade ago) was fairly similar. It was not user-friendly and had a steep learning curve. However, to their credit, they have improved the software since then. Some of the user-defined inputs still require scripting through a command based journal file, but it's not in C as far I know.

There has been a lot of improvement in Fluent meshing, they have WorkBench and SpaceClaim now. They even have developed a proprietary turbulence model that is supposedly tunable (message me if you'd like more info, not going to go into it here).

It's a very powerful tool, but still not as user-friendly as Star-CCM. At this point I have completed the training and just need to put it into practice, which is probably easier said than done.

August 17, 2016, 06:53	Average flow temperature	#1
Lerma New Member Join Date: Aug 2016 Posts: 1 Rep Power: 0	I'm moddeling a simple pipe 1 m length heated by external heat source. Is it possible in star-ccm+ to plot some surface average values (temperature/velocity/pressure) over specified direction? I can make a cross-section and report surface average temperature on this section, but I this way I'll have to do over 200 reports to make a plot.

June 7, 2022, 19:06		#8
cwl Senior Member Chaotic Water Join Date: Jul 2012 Location: Elgrin Fau Posts: 436 Rep Power: 17	Oh, no, that sounds like lots of suffering coming %) The last time I was dealing with Ansys years ago - in Fluent anything user-defined had to be written in C and pre-compiled with hardly any possibilities to debug and CFX had a constantly freezing UI from 90's - so most of the time was spent on dealing with the software instead of solving the task ... 0_₀ ashokac7 likes this.

June 7, 2022, 19:20		#9
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 17	My original experience with Fluent (over a decade ago) was fairly similar. It was not user-friendly and had a steep learning curve. However, to their credit, they have improved the software since then. Some of the user-defined inputs still require scripting through a command based journal file, but it's not in C as far I know. There has been a lot of improvement in Fluent meshing, they have WorkBench and SpaceClaim now. They even have developed a proprietary turbulence model that is supposedly tunable (message me if you'd like more info, not going to go into it here). It's a very powerful tool, but still not as user-friendly as Star-CCM. At this point I have completed the training and just need to put it into practice, which is probably easier said than done. ashokac7 likes this.

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June 4, 2022, 14:01		#2
hernanj New Member Jesús Hernán Jiménez Join Date: Feb 2021 Posts: 2 Rep Power: 0	Hi, did you figure out how to do it? I need something similar and I can't find an efficient way.

June 6, 2022, 08:46		#3
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 17	nevermind - I didn't read that very well. you might be able to do that with a presentation plane

June 7, 2022, 18:41		#6
cwl Senior Member Chaotic Water Join Date: Jul 2012 Location: Elgrin Fau Posts: 436 Rep Power: 17	Ew, what made you deal with Ansys? %)

June 7, 2022, 19:01		#7
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 17	haha... my corporate overlords decreed that it be so. they were already maintaining licenses for both Ansys and Star-CCM and they (shockingly) came to the conclusion that it was cheaper to pay for only one.