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CAD · head to head

ANSYS Fluent vs Autodesk Netfabb

ANSYS Fluent logo

ANSYS Fluent

CAD

Computational fluid dynamics solver for turbulence, combustion and multiphase flow

From
On request
Rated
-
Full reviewWebsite
Autodesk Netfabb logo

Autodesk Netfabb

Manufacturing

Additive manufacturing build preparation and simulation, now sold only bundled with Fusion

From
$4415/year
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ANSYS Fluent solver seats and HPC packs are licensed separately, and the packs scale by core count, so the cost of running a large case in parallel can exceed the base licence several times over and is the line item that surprises first-time buyers.; Autodesk Netfabb netfabb Ultimate has been retired outright, with no 2026 release and no renewals, so anyone who bought Ultimate is frozen on the 2025.1 build and must accept the repackaged Netfabb instead.
  • They diverge on capability: ANSYS Fluent covers Turbulence model library, Autodesk Netfabb covers Mesh repair.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which ANSYS Fluent and Autodesk Netfabb actually diverge.

Attributes where ANSYS Fluent and Autodesk Netfabb differ
AttributeANSYS FluentAutodesk Netfabb
Starting priceOn request$4415/year
Pricing modelquotePer user per year
PlatformsWindows, LinuxWindows, Desktop
CategoryCADManufacturing

Identical on both: free tier (No), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ANSYS Fluent

  • Turbulence model library
  • Combustion and reacting flow
  • Multiphase flow
  • Meshing
  • HPC parallel solving
  • Fluent aero and native GPU solver
  • Ansys Workbench integration
  • User-defined functions

Only in Autodesk Netfabb

  • Mesh repair
  • Build orientation and nesting
  • Support generation
  • Build simulation
  • Geometry compensation
  • Lattice and shell structures
  • Machine library
  • Fusion bundle

What people use each for

The jobs each tool is most often brought in to do.

ANSYS Fluent

  • Certifying an aerospace component where the customer specification names a validated commercial CFD solvernot Autodesk Netfabb
  • Predicting thermal performance of a data centre or electronics enclosure before committing to a mechanical designnot Autodesk Netfabb
  • Combustion analysis for a gas turbine or industrial burner where detailed chemistry models are requirednot Autodesk Netfabb
  • A consultancy that must hand a client an auditable analysis in a tool the client's own engineers can reopennot Autodesk Netfabb

Autodesk Netfabb

  • A metal additive bureau predicting distortion on a laser powder bed build before committing twenty hours of machine timenot ANSYS Fluent
  • An aerospace supplier applying automatic geometry compensation so printed parts land within tolerance without iterative trial buildsnot ANSYS Fluent
  • A production department nesting hundreds of small parts into a single polymer build to raise volume utilisationnot ANSYS Fluent
  • An engineering team that already subscribes to Fusion and wants AM preparation without adding a second vendornot ANSYS Fluent

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ANSYS Fluent

  • Solver seats and HPC packs are licensed separately, and the packs scale by core count, so the cost of running a large case in parallel can exceed the base licence several times over and is the line item that surprises first-time buyers.
  • Ansys does not publish any pricing, and quotes vary widely by region, industry and negotiating position, so a smaller firm has no way to know whether it is being charged fairly relative to a large account.
  • Synopsys completed its acquisition of Ansys in July 2025 and started shipping combined capabilities in 2026; packaging, bundling and account teams are changing, and buyers on multi-year agreements should expect renewal terms to be renegotiated on a different basis.
  • Getting trustworthy results demands genuine CFD expertise in meshing, turbulence model selection and convergence assessment, so the licence is useless without a specialist, and the specialist is harder to hire than the software is to buy.
  • Licences are typically served from a network licence manager, which means concurrent-use contention inside a busy simulation group; engineers queue for solver tokens, and organisations end up buying spare seats purely to avoid the queue.

Autodesk Netfabb

  • Netfabb Ultimate has been retired outright, with no 2026 release and no renewals, so anyone who bought Ultimate is frozen on the 2025.1 build and must accept the repackaged Netfabb instead.
  • Autodesk has ended development of the Selective Space Structures, Optimization Utility and Lattice Topology utilities, which removes capability some customers specifically bought the product for.
  • It is now only sold bundled as Autodesk Fusion with Netfabb, so a shop that has standardised on other CAD pays for Fusion entitlements it will not use.
  • At around 4,415 US dollars per seat per year it is far above slicer-class tools, and the pricing is per named user with no floating option in the standard subscription, which hurts teams where the AM engineer role is shared.
  • Machine coverage is broad but not universal, and the newest printers from smaller manufacturers often reach their vendor own preparation software long before a Netfabb profile appears.

Pricing, plan by plan

ANSYS Fluent

On request
  • Ansys Fluent$undefined/year
    • Annual lease or paid-up perpetual licence
    • Solver seats licensed separately from HPC parallel packs
    • HPC packs priced by core count and scale multiplicatively

Autodesk Netfabb

$4415/year
  • Autodesk Fusion with Netfabb$4415/year
    • Single-user subscription
    • Netfabb build preparation, formerly Premium
    • Selected functionality from the retired Ultimate edition
  • Netfabb Simulation$undefined/year
    • Metal powder bed build simulation
    • Quoted through Autodesk sales, no published price

Which should you pick?

Choose ANSYS Fluent if

  • You need turbulence model library.
  • You work on Windows, Linux.
  • You also want combustion and reacting flow.
ANSYS Fluent review

Choose Autodesk Netfabb if

  • You need mesh repair.
  • You work on Windows, Desktop.
  • You also want build orientation and nesting.
Autodesk Netfabb review

Questions people ask

Is ANSYS Fluent or Autodesk Netfabb better?
Neither clearly leads. ANSYS Fluent starts at On request and Autodesk Netfabb at $4415/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ANSYS Fluent or Autodesk Netfabb?
ANSYS Fluent starts at On request and Autodesk Netfabb at $4415/year.
Does ANSYS Fluent or Autodesk Netfabb run on more platforms?
ANSYS Fluent runs on Windows, Linux. Autodesk Netfabb runs on Windows, Desktop.
What is ANSYS Fluent best used for?
ANSYS Fluent is most often used for certifying an aerospace component where the customer specification names a validated commercial cfd solver, predicting thermal performance of a data centre or electronics enclosure before committing to a mechanical design, combustion analysis for a gas turbine or industrial burner where detailed chemistry models are required, a consultancy that must hand a client an auditable analysis in a tool the client's own engineers can reopen. Of those, certifying an aerospace component where the customer specification names a validated commercial cfd solver and predicting thermal performance of a data centre or electronics enclosure before committing to a mechanical design are not what Autodesk Netfabb is typically brought in for.
What can ANSYS Fluent do that Autodesk Netfabb cannot?
ANSYS Fluent covers Turbulence model library, Combustion and reacting flow, Multiphase flow, Meshing. Autodesk Netfabb covers Mesh repair, Build orientation and nesting, Support generation, Build simulation.

Answered from the vendors’ own pages

ANSYS Fluent: How much does Fluent cost?

Ansys does not publish pricing. Expect an annual lease per solver seat plus separately licensed HPC packs for parallel cores, with the total for a serious capability running into six figures a year.

Autodesk Netfabb: Is Netfabb discontinued?

No, but Netfabb Ultimate is. There is a 2026 release of Netfabb, sold only as Autodesk Fusion with Netfabb. Ultimate licences cannot be renewed.

ANSYS Fluent: Is Fluent still an Ansys product?

Yes, but Ansys is now part of Synopsys following the acquisition that completed in July 2025, and the two portfolios are being combined.

Autodesk Netfabb: What does it cost?

The Fusion with Netfabb single-user subscription is listed at roughly 4,415 US dollars a year. Netfabb Simulation is quoted separately.

ANSYS Fluent: Can OpenFOAM do the same job?

Numerically it can cover a lot of the same physics at no licence cost, but it lacks the meshing workflow, support and the validation pedigree that certification and customer specifications often require.

Autodesk Netfabb: Is there a perpetual licence?

No. Autodesk sells subscription only across its product range.

ANSYS Fluent: Is there a free version?

There is a student edition with cell count limits, suitable for learning but not for production work.

Autodesk Netfabb: Do I need Fusion to use it?

You do not have to use Fusion, but you now pay for it, because the bundle is the only way Netfabb is sold.

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