Search found 280 matches

by Luciano Garelli
Mon Jul 25, 2016 5:35 pm
Forum: code_saturne usage
Topic: Frozen field Lagrangian particle simulation
Replies: 3
Views: 3196

Re: Frozen field Lagrangian particle simulation

Hello,

Yes, you are right. Would be useful that the frozen field at the restart appear selected after Frozen carrier flow were selected. Maybe the developers has its reasons for doing in that way.

Regards,

Luciano
by Luciano Garelli
Mon Jul 25, 2016 3:30 pm
Forum: code_saturne usage
Topic: Frozen field Lagrangian particle simulation
Replies: 3
Views: 3196

Re: Frozen field Lagrangian particle simulation

Hello, Frozen carrier flow is setted with the variable IILAGR=3, and the doxygen documentation mention "when IILAGR= 3 Lagrangian two-phase flow on frozen continuous phase. This option can only be used in case of a calculation restart. All the Eulerian fields are frozen (including the scalar fi...
by Luciano Garelli
Tue Jul 19, 2016 10:14 pm
Forum: code_saturne usage
Topic: Database
Replies: 1
Views: 1855

Re: Database

by Luciano Garelli
Tue Jul 19, 2016 8:21 pm
Forum: code_saturne usage
Topic: Fourier number + problem velocity results
Replies: 10
Views: 7028

Re: Fourier number + problem velocity results

Hello Claude, What do you refer with "the junction is bad"? Are you doing the face joining in salome (build compound->merge coincident nodes and elements) or in CS (Face joining)?? I don't know how is your geometry, but you can use projection 1D2D in Salome in order to have the same mesh a...
by Luciano Garelli
Wed Jul 13, 2016 5:28 pm
Forum: code_saturne usage
Topic: Fourier number + problem velocity results
Replies: 10
Views: 7028

Re: Fourier number + problem velocity results

Hello,

Did you try to reduce the Courant Number to get a Co~1..5?.
Looking at the figure that you posted, I think that you can do a structured mesh using 3D extrusion, doing a mesh for the diffuser, a mesh for the room and then gluing at the interface.

Regards,

Luciano
by Luciano Garelli
Thu Jul 07, 2016 6:58 pm
Forum: code_saturne usage
Topic: Simple flow problem comparison with Comsol
Replies: 11
Views: 6448

Re: Simple flow problem comparison with Comsol

Hello,

I attach a screenshot about where you can set the output frequency.
output.jpg
Regards,

Luciano
by Luciano Garelli
Thu Jul 07, 2016 3:36 pm
Forum: code_saturne usage
Topic: Simple flow problem comparison with Comsol
Replies: 11
Views: 6448

Re: Simple flow problem comparison with Comsol

Hello, Yes, you can select the frequency of the output in the writer tab on "Output Control". With respect to the energy balance you can define internal surfaces and integrate the variables or quantities, but also you can do during the post processing (this is what I did) in paravis/paravi...
by Luciano Garelli
Thu Jul 07, 2016 2:46 pm
Forum: code_saturne usage
Topic: Simple flow problem comparison with Comsol
Replies: 11
Views: 6448

Re: Simple flow problem comparison with Comsol

Hello, In the practical user's guide of CS ( http://code-saturne.org/cms/documentation ) you can get a description of the different values of IDTVAR IDTVAR = -1: steady algorithm IDTVAR = 0: constant time step IDTVAR = 1: time step constant in space but variable in time IDTVAR = 2: variable time ste...
by Luciano Garelli
Wed Jul 06, 2016 6:02 pm
Forum: code_saturne usage
Topic: Simple flow problem comparison with Comsol
Replies: 11
Views: 6448

Re: Simple flow problem comparison with Comsol

Hello, Regarding your question about steady algorithm you can check the BPG (Best Practice Guidelines) http://code-saturne.org/cms/sites/default/files/file_attach/BPG/BPG-4-Numerical-Parameters.pdf where some guidelines about the use and requirements of the different schemes. In order to check if th...
by Luciano Garelli
Mon Jul 04, 2016 4:19 pm
Forum: code_saturne usage
Topic: Looking for help running a simulation
Replies: 9
Views: 8545

Re: Looking for help running a simulation

Hello Salim,

You are welcome. I'm glad you were able to run your simulation.

Regards

Luciano