SimScale CAE Forum

Help needed to obtain the passive scalar image


#1

Hello Community folks,

i am working on project titled (Pollution of Air through Exhaust Gases from a Chimney) based on editorial demo. i would be really thankful if anyone can help me to obtain below image. i believe the below image is obtained from paraview. however i am not sure how to obtain the below image. i would really appreciate your efforts for helping me on this.

thankyou,
Sam.


#2

Hi Sam!

If you have some time I will create a video for you later on how you can achieve this, hope that’s fine!

Best,

Jousef


#3

Thankyou Jousefm for your response. i will be eagerly looking for your support. i believe everyone are off on Christmas and new year vacation.

waiting for this.

thankyou,
Sam.


#4

Hey Sam!

There you go, sorry for taking a bit longer (also sorry for small audio glitches, YouTube is doing additional post-processing on the video, guess I have to adapt my audio filters in the future :smiley: ):

Best,

Jousef


#5

Dear Jousefm,

i am very happy with your instant response and for your efforts in creating the video. this video really helped me to work on the same file which i downloaded and performed similar operations in paraview. however when i am using the same approach for the following project ( https://www.simscale.com/workbench/?pid=1794688880864976650&mi=run%3A5%2Csimulation%3A1&mt=SIMULATION_RUN)

i am getting an error. i am pasting the image below for your reference.

in the above image, it can be seen that U (?) can be seen. i am attaching separate image for better understanding.

image

i am using paraview 5.4.1 64-bit version. please help me to solve this issue. looking forward to hear from you. thankyou,

Sam.


#6

Hey Sam,

Your simulation is enormously big! I am at 5 GB and it does not stop downloading :smiley: @CFD-SQUAD, can you please give Sam some optimization tips on his simulation? Cheers guys!

Jousef


#7

One easy way to save some space is by writing data sets less often (especially when meshes are this big).

With these settings, you will save 5 data sets in total (0; 250; 500; 750; 1000). By setting write interval = End time, your results file won’t be as heavy (0 and 1000 iterations data sets). This also helps with ParaView, as it will have less data to load :+1:
image


#8

Dear all,

Mehmet from simscale team helped me to solve this issue in online post-processor. however i may getback to this thread when i will simulate the problem with less memory. for now this is solved. thanks a lot Jousefm and Ricardopg for your support.

thankyou,
sam.


#9

Hi Sam,

Thanks for the heads up! The online PP definitely does the job, but would be nice to know why the offline one does not get it, maybe because of a BC overlap?

Cheers,

Jousef