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CAD · head to head

ANSYS Fluent vs DraftSight

ANSYS Fluent logo

ANSYS Fluent

CAD

Computational fluid dynamics solver for turbulence, combustion and multiphase flow

From
On request
Rated
-
Full reviewWebsite
DraftSight logo

DraftSight

CAD

Professional 2D CAD drafting

From
$29/month
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.; DraftSight specific pricing amounts not disclosed on website
  • They diverge on capability: ANSYS Fluent covers Turbulence model library, DraftSight covers DWG/DXF support.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which ANSYS Fluent and DraftSight actually diverge.

Attributes where ANSYS Fluent and DraftSight differ
AttributeANSYS FluentDraftSight
Starting priceOn request$29/month
Pricing modelquotesubscription
PlatformsWindows, LinuxWindows, MacOS, Linux
FoundedUnknown1981

Identical on both: 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 DraftSight

  • DWG/DXF support
  • 2D drafting
  • 3D modeling
  • Batch printing
  • PDF import
  • Layer management
  • SolidWorks
  • CATIA

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

DraftSight

  • 2D drafting and annotation on DWG filesnot ANSYS Fluent
  • Opening and editing DWG drawings without AutoCADnot ANSYS Fluent
  • Architectural and engineering drawing productionnot ANSYS Fluent
  • Working alongside SOLIDWORKS in a Dassault toolchainnot 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.

DraftSight

  • Specific pricing amounts not disclosed on website
  • Directs customers to contact sales or visit store for pricing
  • Three tiers available but feature differences not fully detailed

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

DraftSight

$29/month
  • Standard$99/month
    • 2D drafting
  • Professional$199/month
    • 2D + 3D
  • Premium$499/month
    • Advanced features

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 DraftSight if

  • You need dwg/dxf support.
  • You work on Windows, MacOS, Linux.
  • You also want 2d drafting.
DraftSight review

Questions people ask

Is ANSYS Fluent or DraftSight better?
Neither clearly leads. ANSYS Fluent starts at On request and DraftSight at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ANSYS Fluent or DraftSight?
ANSYS Fluent starts at On request and DraftSight at $29/month.
Does ANSYS Fluent or DraftSight run on more platforms?
ANSYS Fluent runs on Windows, Linux. DraftSight runs on Windows, MacOS, Linux.
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 DraftSight is typically brought in for.
What can ANSYS Fluent do that DraftSight cannot?
ANSYS Fluent covers Turbulence model library, Combustion and reacting flow, Multiphase flow, Meshing. DraftSight covers DWG/DXF support, 2D drafting, 3D modeling, Batch printing.

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.

DraftSight: Is there a free trial for DraftSight?

Yes, DraftSight offers a 30-day full-featured trial available for download. The trial provides complete access to all 2D/3D tools and advanced features.

Source
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.

DraftSight: What DraftSight tiers are available?

DraftSight offers three pricing tiers: Professional (core 2D CAD tools), Premium (adds advanced tools, STEP import, and BIM module), and Enterprise (for large organizations with multiple sites).

Source
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.

DraftSight: What licensing options does DraftSight provide?

DraftSight offers Named-User Licensing for individuals and dedicated workstations, Network Licensing for shared access across users and locations, Perpetual Licensing for one-time purchase, and Cloud and Remote Access options.

Source
ANSYS Fluent: Is there a free version?

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

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