Results for case 3D Diffuser

Code: Code Saturne

Version: 1.4.0 and 1.3.2

Authors: Juan Uribe, Flavien Billard

Method and Numerical Options



The mesh has 250x50x96 cells with refinement near the walls. The maximum y+ value of the first cell is less than 2. The domain extends up to 40 time the inlet height.

  • inlet_sst_60x180.dat: inlet datat for the sst model for grid with 60x180 cells (rename to inlet.dat)

Description of the results files

The zip file contains all results for all models as submitted to the 13th ERCOFTAC/IAHR workshop. There are velocity profiles at locations and velocity contours. Also a pressure coefficient on the mid-spanwise location at the straight wall is included.

For a full description see here

* sst_212X60X180.tar.gz: Files used to run the SST model in version 1.4.0

Boundary conditions

Inlet profiles taken from a duct flow precursor simulation with the same mesh on the Y-Z planes. No interpolation required.

The walls have no-slip condition except when using the SSG model where a scalable wall function is used.

Reference Publications

Additional information (links, pictures, etc.)

  • Velocity profiles at z/H=2:

  • Velocity profiles at z/H=2 (second half):

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Topic attachments
ISorted ascending Attachment Action Size Date Who Comment
elsebz2 Ercoftac_c13.2_UoM.tar.bz2 manage 2254.0 K 2008-10-09 - 10:47 JuanUribe Results
elsedat inlet_sst_60x180.dat manage 907.0 K 2009-06-30 - 10:41 JuanUribe inlet datat for the sst model for grid with 60x180 cells
elsegz Diff_3D_1_106x060x100.unv.gz manage 21059.5 K 2009-05-08 - 12:24 JuanUribe Mesh 106x60x100 cells
elsegz Diff_3D_1_212x060x180.unv.gz manage 78150.3 K 2009-05-08 - 12:43 JuanUribe Mesh 212x060x180
elsegz sst_212X60X180.tar.gz manage 98930.6 K 2009-05-08 - 12:44 JuanUribe Files used to run the SST model in version 1.4.0
pdfpdf Turbulence_Profiles_c13.2_UoM-1.pdf manage 116.1 K 2008-10-09 - 10:58 JuanUribe Turbulence Profiles
pdfpdf Velocity_Profiles_c13.2_UoM-1.pdf manage 120.8 K 2008-10-09 - 10:58 JuanUribe Velocity Profiles
pngpng Velocity_Begin.png manage 17.2 K 2008-10-28 - 15:16 JuanUribe Velocity profiles at z/H=2
pngpng Velocity_End.png manage 20.9 K 2008-10-28 - 15:17 JuanUribe Velocity profiles at z/H=2 (second half)
Topic revision: r6 - 2009-06-30 - 10:42:13 - JuanUribe

Computational Fluid Dynamics and Turbulence Mechanics
@ the University of Manchester
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