Siemens Digital Industries Software

NX CAD

The geometry foundation for the whole simulation chain. A model built in NX transfers directly into Simcenter with no file export, eliminating the most time-consuming stage of every CFD project.

1 model
design → simulation
Large assemblies
thousands of parts
Seamless
into Simcenter 3D & FloEFD
VN
local engineering support

The role of NX in simulation projects

Nothing is lost in translation

Exporting through a neutral format always drops faces, opens gaps and breaks tolerances, costing the simulation engineer days of geometry repair. A shared NX platform eliminates this step.

Parametric geometry

Change a dimension in NX and re-run the simulation — the basis for sweeping whole families of design options.

Handles large assemblies

Industrial equipment is usually an assembly of hundreds or thousands of parts; NX manages that level of complexity.

Applications

  • Industrial equipment design — combustion chambers, heat exchangers, piping systems
  • Geometry preparation for simulation — simplification, fluid volume extraction, closing gaps
  • Parametric models — building design variants for optimization
  • Manufacturing drawings — issued once the option has been confirmed by simulation
An industrial equipment assembly model in Siemens NX
/image/phan-mem/nx.jpg2:1 ratio (landscape)
Geometry built in NX transfers directly into the Simcenter tools.

Coupled tools

Simcenter FloEFD

Runs CFD inside the NX window without leaving the design environment.

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Simcenter 3D

Shares the NX data for structural, thermal and vibration work.

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Simcenter STAR-CCM+

Takes NX geometry for heavy industrial CFD cases.

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Solid Edge

The mid-range CAD option when the full power of NX is not yet needed.

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Applications at CFDWAYS

  • Preparing and cleaning geometry before meshing — the most time-consuming stage of a CFD project
  • Building design variants to compare retrofit options
  • Taking client drawings in many formats and consolidating them into one usable model

Industries served

Licensing & support

NX is sold as a modular configuration. An organization using NX mainly to prepare geometry for simulation does not need the full configuration a manufacturing design office would.

  • From a basic mechanical design package up to a full configuration with CAM and simulation
  • Annual or perpetual licenses with maintenance
  • CFDWAYS recommends a configuration matched to your actual use

Indicative system requirements

Operating systemWindows 10/11 64-bit or Linux
RAM16 GB minimum, 32 GB or more for large assemblies
GraphicsA professional GPU with a certified driver
StorageSSD for part libraries and assembly files

Frequently asked questions

We use a different CAD system. Is switching to NX required?

Not necessarily. STAR-CCM+ imports many formats. However, for frequent design–simulation iterations, a shared NX platform saves significant geometry-handling time.

Will CFDWAYS do the geometry preparation?

Yes. Many clients simply send the drawings and let CFDWAYS handle everything from geometry to results.

Is your CAD ready for simulation?

Send the CAD file in any format — CFDWAYS will review it and report any issues to resolve.

Send project details

See more: The full Siemens software portfolio · Simcenter FloEFD · Project-based simulation services