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ANSYS CFX

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Ansys CFX
Developer(s)Ansys Inc.
Stable release
14.5
Operating systemUnix, Microsoft Windows, Linux
TypeComputational fluid dynamics software
LicenseCommercial software
Website[1]

Ansys CFX is a commercial computational fluid dynamics (CFD) program which allows engineers to test systems by simulating fluid flows in a virtual environment — for example, the fluid dynamics of ship hulls; gas turbine engines (including the compressors, combustion chamber, turbines and afterburners); aircraft aerodynamics; pumps, fans, HVAC systems, mixing vessels, hydrocyclones, vacuum cleaners, etc. The software originated in TASCflow, a program developed by Advanced Scientific Computing (ASC), of Waterloo, Ontario, with strong ties to the University of Waterloo, and CFX-4 (formerly Flow3D, developed in-house by the United Kingdom Atomic Energy Authority (UKAEA); both programs were structured as multi-block hexahedral grid code.

The UKAEA commercialized Flow3D in the late 1980s and early '90s, after which it was renamed as CFX-4 in the mid-1990s, since the original name was already in use in North America. The original product offering was based on a co-located segregated implementation of the SIMPLE solution method. CFX-4 was strong in the chemical process industry and included advanced multiphase and chemistry models.

TASCflow's co-located primitive variable formulation utilized a control volume–based finite-element discretization scheme to create a linearized system of equations solved using a proprietary coupled-multigrid solver. Its initial academic focus led to the development of advanced discretization methods and solution algorithms. CFX-TASCflow was primarily used for turbo-machinery applications, with modelling strengths in combustion and turbulence, where the coupled solver delivered simultaneous solution of hydrodynamic flow variables (velocity and pressure).

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