July 07 2020

NUMECA HEXPRESS/Hybrid 9.2 (x64)

NUMECA HEXPRESS/Hybrid 9.2 (x64)
NUMECA HEXPRESS/Hybrid 9.2 | 1.2 Gb

NUMECA International is delighted to announce the official release of HEXPRESS and HEXPRESS/Hybrid version 9.2. This solutions use a similar volume-to-surface approach, suppressing the need for a surface mesh. Both systems run in batch or interactive mode and are interfaced to all major commercial CFD codes.

The following is a detailed list of new capabilities and enhancements in HEXPRESS 9.2:

Admin Tool upgraded to 2019.5-1

In the Admin Tool v2019.5-1, the new following features are introduced:

- The licensing tools have been improved to provide a more robust Vendor Daemon Hostid (VDH).
- On Windows, when the Random MAC address is enabled, the host ID of the machine could change, which could result in invalid license file. The License Management menu of the Admin Tool allows to detect it and inform the user: the machine details are not displayed.
- On Windows, when a non-ascii path is used for the installation directory, a warning is appearing before starting the Admin Tool with a recommendation to avoid non-ascii path.
- On Linux, FlexLM requires LSB (Linux Standard Base) compliance. The License Management menu of the Admin Tool detects if the lsb-core is installed and allows to install it as sudo if not installed.
- The license information (path of the used "License_management" directory, host name, host IDs) can be retrieved at the top of the License Management menu of the Admin Tool.
- FlexLM version is upgraded from 11.14 to 11.16.4.

Customer Benefits
- Improvement of the tool to manage licensing and user configuration.

Known Limitations
- The Vendor Daemon HostID might change.

General upgrades in package

General upgrade is made in the package:

- End of support for Ubuntu 14.04 LTS, Fedora 22 and Fedora 25.
- Beginning of support for Ubuntu 18.04 LTS.
- Smarter inflation method is active by default for newly created projects.
- Datakit library is upgraded to v2020.1.

Customer Benefits
- Officially supported system Ubuntu 18.04 LTS.
- Higher mesh quality especially in the viscous layers zone.

Known Limitations
- As the viscous layers can be more inflated with the smarter inflation method, the minimum orthogonality of the first Euler cells can decrease in some closed configuration.

The following is a detailed list of new capabilities and enhancements in HEXPRESS/Hybrid 9.2:

General upgrades in package

General upgrade is made in the package:

- Supports of Open MPI v2.1.2 and Intel MPI v2018.1,
- End of support for Ubuntu 14.04 LTS, Fedora 22 and Fedora 25,
- Beginning of support for Ubuntu 18.04 LTS,
- Interfacing Fluent quality criteria (BETA) in HEXPRESS™/View,
- The SMARTSTARTPOINTMARKING keyword is now deprecated, use EXTENDEDDUALMESH instead,
- Improved user-friendliness of the TRANSFORMSELECTIONS keyword.
- It is now applicable not only to the geometries defined by INFILENAMES but also ADDINFILENAMES. In the existing CONF file, if the wildcard "*" is defined for the selection list, the transformation will be applied on the geometries from both the INFILENAMES and ADDINFILENAMES in the v9.1.
- Change of behavior for full hexahedral mesh generation when incompatibility found.
- Instead of advancing the mesh generation with a warning, it will be stopped with an error message when BNDLAYERREDIM, BNDLAYERINSERT or BNDLAYERINSERTFIRSTCELLSIZE keywords are detected together with the GENERATEFULLHEXAMESH keyword.
- Added the "force" option for NEWBUFFERPARAM SELANGLE.
- This option enforces buffer type II regardless of the dihedral angle.
- Support of group name prefix by the CREATEGROUPSELECTIONS keyword.
- Added license wait option for HEXPRESS™/Hybrid and the Datamapper. The argument -wait_license can be used in the launching commands.
- Datakit library is upgraded to v2020.1.

Customer Benefits
- Officially supported system Ubuntu 18.04 LTS.

Periodic repetition for FNMB connections

The capability to generate FNMB connections that are periodic repetition between domains has been added.

Customer Benefits
- Provides the option to generate periodic repetition FNMB connections between domains.

HEXPRESS/Hybrid is a 3D mesh generation tool developed by NUMECA for meshing large and complex geometries in a fast and flexible manner. HEXPRESS/Hybrid generates isotropic and hexahedral-dominant meshes which contain also tetrahedra, pyramids and prisms. The generated meshes can be imported into FINE/Open with OpenLabs chain. HEXPRESS/Hybrid is basically a complete package comprising several tools that provides a wide variety of functionality to the users.

HEXPRESS is an automatic unstructured hexahedral mesh generator software designed to automatically generate meshes in complex 2D and 3D geometries. HEXPRESS generates non-conformal body-fitted full hexahedral unstructured meshes on complex arbitrary geometries. In addition, the advanced smoothing capability provides high-quality boundary layers insertion. HEXPRESS uses a volume-to-surface approach, suppressing the need for a surface mesh.

Computation of a full engine using FINE/Open's NLH and combustion models. Combustion chamber generated with HEXPRESS/Hybrid. Compressor and turbine generated with AutoGrid5.

Numeca International Inc develops computational fluid dynamics (CFD) software for the simulation, design, and optimization of fluid flow and heat transfer worldwide. It offers automated and customized flow integrated environments (FINE), including FINE/Turbo for the simulation of rotating and turbomachinery flows; FINE/Open for the simulation of complex internal and external applications; and FINE/Marine for marine applications.

Version: 9.2
Supported Architectures: x64
Website Home Page :

Language: english
System Requirements: PC *
Supported Operating Systems: *
Size: 1.2 Gb

Supported platforms and operating systems

NUMECA software is supported in 64 bits on x86_64 processors only (64 bits processors that are compatible with Intel 8086 set of instructions).

Formally tested on
- Windows 8.1 Professional
- Windows 10 Professional

Please also notice that the following limitations apply:

- Parasolid uses SSE2 instruction for high performance. If your platform is not supporting the SSE2 instruction, the FINE™ GUI cannot be started.
- AMD EPYC and RYZEN processors are slower on Windows 10 compare to Linux.

Hardware requirements

Next to the standard hardware (monitor, keyboard and mouse), some specific recommendations apply in the use of NUMECA software:
- a mouse with scroll wheel is strongly recommended.
- the monitor should support 24-bit color graphics and have a 1280 x 1024 pixel resolution for adequate visualization.
- an Ethernet card should be installed and properly configured.
- NUMECA Software does not support CXFS (Clustered XFS) and IBRIX disk file systems.

Specific to HEXPRESS/Hybrid

- HEXPRESS/Hybrid makes direct use of OpenGL libraries. These libraries must thus be up-to-date, properly installed and configured before HEXPRESS/Hybrid can be started.
- Tests have only been performed on NVIDIA graphical cards.

Memory and disk space requirements

The Random Access Memory (RAM) required to run NUMECA software depends upon several factors, in particular including the number of grid points inserted in the grid, the physical models selected (turbulence, adaptation,.), the introduction of non-matching boundary conditions and the selected calculation mode (mixed or double precision).

Similarly, a minimum disk space is required on the hard disk to allow the storage of the project files. The size of these files largely depends upon the number of grid points generated.

- The use of minimum 1 GB RAM is strongly recommended. As a general guideline, about 0.5 to 0.7 GB RAM are required to run a one million nodes project. The suggested swap space should be equivalent to at least 3 times the RAM installed.
- As a general guideline, a minimum of 300 MB is required to store the project files (provided that the geometry is not defined by Parasolid or CATIA files) for a one million nodes project.

The Random Access Memory (RAM) required to run HEXPRESS™/Hybrid depends upon several factors. In particular, the complexity of geometries and the settings of the CONF file. As a general guideline, the Random Access Memory (RAM) required to run HEXPRESS™/Hybrid are:
- for mesh without viscous layers - between 500 MB and 700 MB RAM per million of cells
- for mesh with viscous layers - between 700 MB and 900 MB RAM per million of cells
The use of minimum 4 GB RAM is mandatory, but the installation of 8 GB is recommended. The suggested swap space should be equivalent to at least three times the RAM installed.
About 1 GB is required to store a two million nodes mesh in SPH format.

Graphics requirements

NVidia graphics cards are fully supported, installed together with the latest drivers.

NUMECA software makes use of the advantages of the available Graphics Card. Some trouble may however come up with the default driver OPENGL since it may not be supported by the user host computer and machine display. In order to set the system compatible with a more portable driver, typically MSW driver is used under Windows instead. Note however that the proposed drivers are usually less efficient in terms of graphical speed than the default driver.

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