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ANSYS Fluent vs Bentley iTwin Capture Modeler

ANSYS Fluent logo

ANSYS Fluent

CAD

Computational fluid dynamics solver for turbulence, combustion and multiphase flow

From
On request
Rated
-
Full reviewWebsite
Bentley iTwin Capture Modeler logo

Bentley iTwin Capture Modeler

CAD

Photogrammetry engine formerly sold as ContextCapture, now inside Bentley's iTwin line

From
On request
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.; Bentley iTwin Capture Modeler the rename from ContextCapture is more than cosmetic: licensing moved into Bentley's subscription and consumption model, and existing perpetual users should confirm what a renewal converts to before assuming continuity of cost.
  • They diverge on capability: ANSYS Fluent covers Turbulence model library, Bentley iTwin Capture Modeler covers Aerial triangulation.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which ANSYS Fluent and Bentley iTwin Capture Modeler actually diverge.

Attributes where ANSYS Fluent and Bentley iTwin Capture Modeler differ
AttributeANSYS FluentBentley iTwin Capture Modeler
PlatformsWindows, LinuxWindows, Cloud

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (CAD).

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 Bentley iTwin Capture Modeler

  • Aerial triangulation
  • Dense mesh reconstruction
  • Point cloud fusion
  • Orthophoto and DSM output
  • 3D Tiles and 3MX export
  • Distributed processing
  • Retouching and editing
  • Georeferencing and control

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 Bentley iTwin Capture Modeler
  • Predicting thermal performance of a data centre or electronics enclosure before committing to a mechanical designnot Bentley iTwin Capture Modeler
  • Combustion analysis for a gas turbine or industrial burner where detailed chemistry models are requirednot Bentley iTwin Capture Modeler
  • A consultancy that must hand a client an auditable analysis in a tool the client's own engineers can reopennot Bentley iTwin Capture Modeler

Bentley iTwin Capture Modeler

  • A highway authority reconstructing a corridor from drone imagery for design work in OpenRoadsnot ANSYS Fluent
  • A survey firm delivering city-scale textured meshes to a municipal client for planning and visualisationnot ANSYS Fluent
  • An engineering consultancy fusing terrestrial laser scans with drone photography of a bridge for condition assessmentnot ANSYS Fluent
  • A team publishing streamable 3D Tiles of a construction site so stakeholders can view it in a browsernot 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.

Bentley iTwin Capture Modeler

  • The rename from ContextCapture is more than cosmetic: licensing moved into Bentley's subscription and consumption model, and existing perpetual users should confirm what a renewal converts to before assuming continuity of cost.
  • Consumption-based entitlements make the cost of a large reconstruction hard to predict in advance, which is awkward when you are quoting a fixed-price deliverable to a client.
  • The desktop engine is Windows only and reconstruction is compute-hungry, so meaningful throughput needs either serious workstation hardware or paid cloud processing.
  • Bentley does not publish a plain rate card and pricing varies by region, reseller and existing agreement, so two firms buying the same thing can pay very different amounts.
  • Value compounds inside the Bentley ecosystem, and a firm whose design work happens in Autodesk or Esri tools pays for a positioning it will not use while getting the same mesh a cheaper standalone photogrammetry package would produce.

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

Bentley iTwin Capture Modeler

On request
  • iTwin Capture Modeler$undefined/year
    • Subscription entitlement through Bentley licensing
    • Consumption charged against Bentley Keys on some agreements
    • Reality Modeling WorkSuite bundles Modeler with reality data management

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 Bentley iTwin Capture Modeler if

  • You need aerial triangulation.
  • You work on Windows, Cloud.
  • You also want dense mesh reconstruction.
Bentley iTwin Capture Modeler review

Questions people ask

Is ANSYS Fluent or Bentley iTwin Capture Modeler better?
Neither clearly leads. ANSYS Fluent starts at On request and Bentley iTwin Capture Modeler at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ANSYS Fluent or Bentley iTwin Capture Modeler?
ANSYS Fluent starts at On request and Bentley iTwin Capture Modeler at On request.
Does ANSYS Fluent or Bentley iTwin Capture Modeler run on more platforms?
ANSYS Fluent runs on Windows, Linux. Bentley iTwin Capture Modeler runs on Windows, Cloud.
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 Bentley iTwin Capture Modeler is typically brought in for.
What can ANSYS Fluent do that Bentley iTwin Capture Modeler cannot?
ANSYS Fluent covers Turbulence model library, Combustion and reacting flow, Multiphase flow, Meshing. Bentley iTwin Capture Modeler covers Aerial triangulation, Dense mesh reconstruction, Point cloud fusion, Orthophoto and DSM output.

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.

Bentley iTwin Capture Modeler: Is ContextCapture discontinued?

The name is. The product continues as iTwin Capture Modeler within Bentley's iTwin family.

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.

Bentley iTwin Capture Modeler: Does it still support a perpetual licence?

New buyers should expect subscription or consumption-based entitlements. Confirm the exact conversion path if you hold an older perpetual licence.

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.

Bentley iTwin Capture Modeler: Can it process laser scan data as well as photographs?

Yes. It fuses point clouds with imagery in a single reconstruction.

ANSYS Fluent: Is there a free version?

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

Bentley iTwin Capture Modeler: Do I need other Bentley software to use it?

No, output formats are usable elsewhere, but the commercial and workflow case is strongest if you already run MicroStation or OpenRoads.

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