Forums Technical Discussion Pyro Sop Solver

Pyro Sop Solver

   834   6   1
User Avatar
sda502
Member
36 posts
Joined: April 2022
Offline
 
I have one point as a pyro source emitter and there's no other forces exerted upon it besides buoyancy, so what I would expect to see is a symmetrical mushroom like shape coming about.

Explain, please?

Attachments:
Screen Shot 2022-10-31 at 14.50.15.png (1.3 MB)
1122.hipnc (884.8 KB)

 Report
User Avatar
sda502
Member
36 posts
Joined: April 2022
Offline
 
I also did an OpenCL version, resulting in a similar asymmetrical shape of smoke.

So where does this mysterious 'disturbance force' come from?

Edited by sda502 - Oct. 31, 2022 21:11:31

Attachments:
OpenCL.png (1.0 MB)
openCL.hipnc (884.8 KB)

 Report
User Avatar
HM_2020
Member
42 posts
Joined: Aug. 2013
Offline
 
sda502
..

So where does this mysterious 'disturbance force' come from?


From everyone the past 15 years wanting NO mushrooms in sims?
 Report
User Avatar
sda502
Member
36 posts
Joined: April 2022
Offline
 
This is what I can get from DOP pyro solver by bringing in the one point emitter. The smoke is not strictly symmetrical but looks more correct than SOP pyro solver.

But still I don't understand what's hiding behind the scenes!

Attachments:
DOPs.png (1.2 MB)

 Report
User Avatar
sda502
Member
36 posts
Joined: April 2022
Offline
 
@rmagee

@johnmather

Sirs, could you help with this?

I believe I could get better control of pyro shape if I understand this.
Edited by sda502 - Nov. 2, 2022 01:31:52
 Report
User Avatar
Werner Ziemerink
Member
1258 posts
Joined: March 2014
Online
 
Can't you just use dissipate to clip the flame much lower on the smooth part?
Werner Ziemerink
Head of 3D
www.luma.co.za
 Report
User Avatar
sda502
Member
36 posts
Joined: April 2022
Offline
 
There's probably some rather sophisticated equations working inside Pyro Solvers that causes disturbance of smoke. The more pertinent question is how to minimise such disturbance (which sometimes can be too strong obviously as if some sort of turbulent force were being put in there) and tweak it to my liking?
Edited by sda502 - Nov. 2, 2022 03:44:04
 Report
  • Quick Links