NUMECA HEXPRESS/Hybrid 7.2 Win/Linux

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HEXPRESS™/Hybrid

可自动生成任意复杂三维几何体的全六面体非结构网格。可直接输入多种作图软件的数据，并对其有自动修补动能。是NUMECA公司专门针对异常复杂模型开发的快速、高效网格生成器。采用全球先进的并行网格生成技术，通过八叉树的网格划分方法生成包含六面体（主要）和四面体的混合网格，并自动生成高质量的边界层网格，其集成的自动包装技术和洞搜索技术可有效避免大量的CAD清理和修补过程，从而实现复杂模型快速、高自动化、高质量的网格生成。

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关键特性:

针对任意复杂的几何模型生成高质量的混合网格：内流/外流，CFD和FEM网格

根据用户需求进行全边吸附

自动完成CAD模型的清理、补洞等修复

狭小缝隙和重叠自动修补

大的缝隙采用HoleSearcher进行检测和修补

根据用户指定细化级别给出几何捕捉详尽信息

先进的并行网格生成技术（SMP共享内存）

图形用户界面全脚本化

采用平滑过渡实现灵活的边界层插入

体网格划分，纯四面体，纯六面体或其混合

网格变形

一步实现相似几何模型的网格划分

可划分狭小细面（如进气道等）

HEXPRESS™/Hybrid

的特性适用于广泛的工业领域：

汽车初期设计、外流场分析、热管理等计算

火车、货车和汽车生产商

工业、农业和建筑机械

石油天然气工业

集成旋转机械和飞行器行业

环境模拟

电子工业

NUMECA HEXPRESS/Hybrid 7.2 | 1.2 Gb/1.2Gb

NUMECA International is delighted to announce the official release of HEXPRESS and HEXPRESS/Hybrid 7.2. This applications produces unstructured hex-dominant conformal meshes of complex geometries, starting from unclean CAD data. Thanks to the fact it can run on multiple processors it's ultra fast on top.

The following is a detailed list of new capabilities and enhancements in HEXPRESS 7.2:

EXPRESS: Define rotor/stator interface with zero radius

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

Optimize mesh quality after transformation

- In some cases where the cell coordinates are near zero, invalid cells can appear after a mesh transformation due to rounding errors. This new advanced option optimizes the mesh quality after the transformation operation, recovering a valid mesh.

Improvements in the mesh processing workflow

- The mesh processing workflow has been improved: When converting a structured AutoGrid5 project into HEXPRESS, the hub and shroud curves definition is stored in the mesh file to compute the span and stream positions within CFView.

The following is a detailed list of new capabilities and enhancements in HEXPRESS/Hybrid 7.2:

Possibility to specify buffer type II locally

- The NEWBUFFERPARAM keyword is introduced to allow buffer type II to be applied locally on specific selections with the following options:

. SELANGLE: uses the local threshold angle specified on the list of selections given.

. AUTOBCANGLE : uses 175° of threshold angle by default for inlet, outlet, mirror and periodic matching connections defined by BCDEFINITION.

Automatic creation of selections groups for SPH/HEX export

- HEXSPHPARAM splitandwritegroups is implemented to split the selection names based on allEdge selections and divides selection names into two parts, group name and short selection name. Group names will be used to define boundary groups in the *.bcs file of SPH/HEX format whereas short selection names will be written as topological surface names listed within the boundary groups. The meshes generated with this option give better agglomerated meshes and thus improve the convergence of the simulation in FINE/Open solver.

Specifying the number of cores used for Datamapper

- Datamapper was using automatically all the cores available on the machine. It is now possible to specify the number of cores before launching Datamapper.

Improvements in viscous layers inflation

- Several improvements are done for viscous layer inflation method:

. Less compressed and deformed Euler mesh.

. Stretching ratio is respected when closing viscous layers.

. Better global inflation by respecting the total VL thickness.

. Inflation steps will succeed more consistently.

While the new improvements ensure more successful inflation steps, it means that the time taken to insert viscous layers will be increased as well. Besides, please take note that the implementations above may impact the global quality of the mesh. A new phase of developments are being planned in the coming releases.

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About NUMECA HEXPRESS/Hybrid.

HEXPRESS/Hybrid is the latest of NUMECA's meshing tools designed for meshing complex geometries starting from unclean CAD data. The tool produces unstructured hex-dominant conformal meshes in parallel, including high quality viscous layers. The integrated automatic wrapping technology and the HoleSearcher allow the user to avoid the time spent on CAD cleaning and repairing, thus significantly reducing the engineering time spent on the generation of a mesh.

- 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.

- HEXPRESS/Hybrid

generates unstructured hex-dominant conformal meshes.

HEXPRESS and HEXPRESS/Hybrid 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. This product is part of AutoMesh.

About Numeca International Inc.

NUMECA International SA 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.

Product:

NUMECA HEXPRESS/Hybrid

Version:

7.2

Supported Architectures:

x64

Website Home Page :

http://www.numeca.com

Language:

english

System Requirements:

Supported Operating Systems:

Windows 7even or newer

Size:

1.2 Gb