ANSYS CFX Features

Efficient and Flexible Workflow

CFX is fully integrated into the ANSYS Workbench environment, a platform designed for efficient and flexible workflows, CAD associativity and powerful capabilities in geometry modeling and meshing. The built-in parameter manager makes it easy to conduct design exploration.

Built for Multiphysics

Gain deeper insight into the complex, often counter intuitive interactions caused by multiple physics such as fluid–structure interaction (FSI). ANSYS CFX is fully integrated with ANSYS Workbench to provide full two way interactivity with ANSYS Mechanical, ANSYS Maxwell and other simulation technologies.

Solve Complex Models with Confidence

ANSYS CFX can model your most difficult fluid flow-related physics phenomena and solve sophisticated models for multiphase flows, chemical reaction and combustion. Even complicated viscous and turbulent, internal and external flows, flow-induced noise predictions, heat transfer with and without radiation can be modeled with ease.

Rotating Machinery

ANSYS CFX is the recognized leader in rotating machinery including pumps, fans, compressors, and gas and hydraulic turbines. These models demand the highest accuracy, robustness and speed. CFX provides a wide range of tools for turbomachinery design and analysis, including rapid optimization of preliminary designs based on 2-D through-flow analysis using the ANSYS Vista TF tool as well as the turbomachinery-specific geometry and mesh-generation tools ANSYS BladeModeler and ANSYS TurboGrid. In addition, tight connection to ANSYS structural mechanics solutions allow fluid–structure interaction (FSI) to be captured whenever required.

Go Faster with High Performance Computing

With high performance computing, ANSYS CFX delivers CFD simulation solutions faster so that engineers and designers can make better decisions sooner in the design cycle. While ANSYS HPC provides linear scalability on systems with tens of thousands of processors, there is more to HPC than just the number of cores. ANSYS also optimizes processor architecture, algorithms for model partitioning, optimized communications and load balancing between processors to deliver results in breathtaking speed on a wide variety of simulation models.

Turbulence Modeling

ANSYS CFX software places special emphasis on providing a wide range of turbulence models to capture the effects of turbulence accurately and efficiently.  

Heat Transfer & Radiation

CFX handles all types of radiative heat exchange in and between fluids and solids from fully and semi-transparent to radiation, or opaque. You can choose from a variety of spectral models to account for wavelength dependencies in a simulation and to account for scattering effects.

Multiphase Flow

A complete suite of models capture the interplay between multiple fluid phases like gases and liquids, dispersed particles and droplets, and free surfaces.

Fluid-Structure Interaction

CFX models the effects of solid motion on fluid flow by coupling with ANSYS structural mechanics solutions through the Workbench unified user environment. ANSYS CFX provides robust and accurate two-way FSI without the need to purchase, administer or configure third-party coupling and pre- and post-processing software.

Mesh Flexibility

ANSYS CFX provides complete mesh flexibility, including the ability to solve flow problems using unstructured meshes that can be generated about complex geometries with ease. Supported mesh types include triangular, quadrilateral, tetrahedral, hexahedral, pyramid, and prism (wedge). ANSYS Workbench allows you to import your CAD geometry, prepare it for CFD use in ANSYS DesignModeler and mesh it automatically or manually with the ANSYS Mesh component.

Go Further with CFX Solver Technology

ANSYS CFX runs robustly and efficiently for all physical models and flow types including steady-state or transient, incompressible or compressible flows (from low subsonic to hypersonic), laminar or turbulent flows, Newtonian or non-Newtonian flows, and ideal or real gases.

Chemical Reactions & Combustion

Whether simulating combustion design in gas turbines, automotive engines, or coal-fired furnaces or assessing fire safety in and around buildings and other structures, ANSYS CFX software provides a rich framework to model chemical reactions and combustion associated with fluid flow.

There is a complete range of options for all situations: a rich library of predefined chemical reactions that can be easily edited and extended by users as well as the integration of ANSYS reactive integrated flamelet (RIF) for detailed chemistry tables. These are rounded out with models for auto and spark ignition, pollutant formation (NOx, soot), residual exhaust gases, knock, wall quenching, flame extinction and more.

Immersed Solid Method

The immersed solids method allows simulation of unlimited motion of solid objects through fluid regions, as it avoids any mesh deformation or remeshing.  Applications include store separation from aircraft and ship motion under the influence of waves.