New Release - FINE™/Open with OpenLabs™ v7.2

    Laura Trappolini     News     31.05.2018

The newest verion of FINE™/Open with OpenLabs™ has just been released! The main focus of this new release is on Robustness, Flexibility and Stability of our unstructured flowsolver.



HEXPRESS™: Store the hub and shroud curvesNUMECA HEXPRESS Storing hub and shroud curves

When a structured AutoGrid5™ project is imported into HEXPRESS™, the hub and shroud curves definition is stored in the mesh file to compute the span and stream positions within CFView™.






NUMECA HEXPRESS Rotor Stator interface with zero radiusHEXPRESS™: Define rotor/stator interface with zero radius

The rotor/stator interface can now include regions where R=0.






HEXPRESS™/Hybrid: Better viscous layers inflation

Several improvements have been made to better inflate viscous layers, among which:

  • NUMECA HEXPRESS Hybrid Less compressed and deformed Euler meshLess compressed and deformed Euler mesh.





  • NUMECA HEXPRESS Stretching ratio respected when closing viscous layersStretching ratio is better respected when closing viscous layers.





  • BeNUMECA HEXPRESS Global inflation respecting total VL thicknesstter global inflation by respecting the total VL thickness.





  • Inflation steps will succeed more consistently.


FINE™/Open: Flow solver robustness improvements

Our experts have used a large database of industrial test cases to ensure maximum robustness of your simulations with the default set-up parameters.

Here are a few examples of changes:

  • The CFL number used during the FMG can now be set independently from the general CFL number for each block. Its default value has been updated.
  • Deactivation of the residual smoothing during the FMG.
  • Use of the central scalar dissipation scheme during the FMG when the central matrix dissipation scheme is selected.

We also have implemented a new solver for solid blocks based on the Conjugate Gradient (CG) method, which is less sensitive to the mesh quality and is unconditionally stable. 




FINE™/Open: Flexibility for the multi-rank harmonic method

Similarly to FINE™/Turbo, users have now more flexibility to set up their multi-rank harmonic computation. 

In particular, the new implementation enables to:

  • define different numbers of harmonics of rank 1 and rank 2.
  • manually select the harmonics that will be solved during the simulation.
  • restrict the clocking effects to time average solution (only for rank 2 computation).








FINE™/Open with OpenLabs™: Variable rotation speed and variable timestep

The user can now vary the rotation speed for steady and unsteady simulations, and the physical time step for time accurate computations through OpenLabs™.


Other improvements


  • Mesh quality improvements after transformation


  • Possibility to specify Buffer type II locally
  • Automatic creation of selections groups for SPH/HEX export
  • More CAD import supported formats (Autodesk Inventor, CATIA V6 on LINUX platforms, UG-NX)
  • Added Select/Unselect button in the GUI
  • Replacing spaces with underscores in the selections names
  • Automatic grouping for selections
  • Specifying the number of cores used for Datamapper
  • Improved robustness for S2V mesh generation (BETA)

FINE™/Open with OpenLabs™

  • Compatibility of Merkle preconditioning and condensable fluids
  • Compatibility of Merkle preconditioning with NLH and perfect gas
  • Define Lagrangian simulations injection points with a file
  • Ability to set a Constant value in OpenLabs™ with an expression
  • FSI: Model rigid body motion


See also
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Laura graduated as Mechanical Engineer with a specialization in Energy from the Belgian University of Mons. She joined NUMECA international in 2015. For the first 3 years, she worked as a Turbomachinery Application Engineer. Today, she manages the Multiphysics Product and Application Group.