Search found 142 matches

by Antech
Mon Jan 18, 2021 2:51 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 10
Views: 99

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Thanks for your explanation and support! I see that it's more numeric thing... Resistance zones are not simple for the universal representation as distributed pressure drop / heat transfer. We use this approach intensively for boiler heating surfaces and heat exchangers (in Ansys CFX/Fluent) and I c...
by Antech
Sat Jan 16, 2021 12:24 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 10
Views: 99

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Hello. May I know current progress in resolving the issue? Regarding physics, sorry, but I cannot agree with applying additional force to particles in resistance zone. What happens physically in that region? Fluid is accelerated and decelerated when passing through construction elements like tubes o...
by Antech
Fri Jan 08, 2021 1:34 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 10
Views: 99

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Regarding aerodynamic resistance zone interaction with particles, in my opinion, maximum that can be done for distributed resistance approach is an optional calculation of resistance with gas-particle mixture density instead of gas density (0.5*DX*ResistanceCoef*RhoMixture*GasVel^2). If calculation ...
by Antech
Fri Jan 08, 2021 1:15 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 10
Views: 99

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Hello, thanks for so fast reply. Sorry, but, I think, it cannot be due to a missing force on particles because, if you leave such particles with only drag and gravitational forces under case conditions (given densities and gas viscosity, constant gas velocity), they will not accelerate more than by ...
by Antech
Thu Jan 07, 2021 12:55 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 10
Views: 99

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Thanks! Willl wail for reply about particle acceleration from Lagrangian module programmers.
by Antech
Wed Jan 06, 2021 1:28 pm
Forum: Installation issues
Topic: Error building with Catalyst support
Replies: 24
Views: 2391

Re: Error building with Catalyst support

A small update. I tried ParaView-5.9-RC that is newest PV available (release candidat). It compiles good in Catalyst mode with the same CMakeCache.txt file with fixed paths and other minor changes (see attach if needed). They really changed Catalyst export interface in 5.9 relative to 5.8. No proble...
by Antech
Wed Jan 06, 2021 1:09 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 10
Views: 99

[Saturne 6.0.6] Particles are accelerated by head loss

Hello. I guess I found the bug in Saturne 6.0.6 . I'm not allowed to share the entire geometry, but, I think, it's not a matter of particular case. In this case, there is a gas duct with recirculation line intake and head loss volume zone that represent the tube bundle. Gas phase calculation was suc...
by Antech
Sun Jan 03, 2021 1:51 pm
Forum: Installation issues
Topic: Error building with Catalyst support
Replies: 24
Views: 2391

Re: Error building with Catalyst support

Hello, great thanks for your support. I solved "many files" issue by setting just "Catalyst" file name in ParaView Export Inspector, Advanced writer (filter) options is opened with [...] button. By default, this file name includes iteration number. Small report about how I set up...
by Antech
Sat Jan 02, 2021 3:31 pm
Forum: Installation issues
Topic: Error building with Catalyst support
Replies: 24
Views: 2391

Re: Error building with Catalyst support

Hello, Ivan. Thanks for your hint, it worked! I will post details later, I had hard times struggling with ParaView (and, finally, versions before 5.8 won't compile in Kubuntu-20.04 despite of many tweaks). Now Saturne-6.3.0 works with ParaView-5.8.1, but it writes "Catalyst_<N>.csv" file f...
by Antech
Fri Jan 01, 2021 3:27 pm
Forum: Installation issues
Topic: Error building with Catalyst support
Replies: 24
Views: 2391

Re: Error building with Catalyst support

Hello. I managed to launch Saturne 6.3.0 with catalyst with ParaView 5.8.1. PyExc_ValueError issue is solved with the following: 1. Set /usr/bin/python symlink to /usr/bin/python3 2. Set /usr/bin/python-config symlink to /usr/bin/python3-config 3. export LD_PRELOAD=$LD_PRELOAD:/usr/lib/x86_64-linux-...