Numeca Releases FINE/Open with OpenLabs v7.2
BRUSSELS, Belgium, Jun 25, 2018 - NUMECA is delighted to announce the official release of FINE/Open with OpenLabs version 7.2. The main focus of this new release is on Robustness, Flexibility, and Stability of unstructured flow solver.
HEXPRESS: Store the 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.
HEXPRESS: 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:
1) Less compressed and deformed Euler mesh.
2) Stretching ratio is better respected when closing viscous layers.
3) Better global inflation by respecting the total VL thickness
4) 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.
- 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
About NUMECA International
NUMECA International is a leading developer and provider of Grid Generation, Multiphysics CFD and Multidisciplinary (Conjugate Heat Transfer, Aero- and Vibro-Acoustics, Fluid-structure interactions) simulation and optimization software for industrial products and processes. Based on original and innovative technology, NUMECA software systems are largely recognized for their superior performances and fidelity with unique application-driven features.
NUMECA Int. has its headquarters and main development teams in Brussels, Belgium and is present worldwide with subsidiaries in China, India, Japan, USA. For more information, visit https://www.numeca.com.