You are here:  Products  ›  ANSYS  ›  Fluids

Computational Fluid Dynamics Software

Predicting and controlling fluid flow is critical in optimizing the efficiency of so many products and processes — the combustion of gases in an automobile engine, the movement of a chemical solution through pores in a shale gas formation, the complex passage of air through a jet engine turbine, and the transfer of heat among components of a printed circuit board, to name a few. ANSYS CFD solutions give you the power to model and simulate all fluid processes — including fluid–structure multiphysics interactions — so you can have confidence that your product will perform optimally before you make the first prototype.

Typical Applications

They can optimize the flow profile and pressure drop and facilitate the dimensioning of pumps and fans, for example for sewage, ventilation and air-conditioning systems, or in hydraulics and pneumatics.

The understanding of mixing processes increases so that you can achieve high-quality mixing in the shortest time and with minimum energy consumption, for example in the production of emulsions and foodstuffs or in plastic processing.

They facilitate the understanding of free surfaces as well as the distribution and size of particles, droplets and bubbles which are present during atomization, boiling or cavitation. Examples are the sloshing in tanks and the atomization in injection systems.

In reactors and combustion processes, emissions and efficiency can be optimized, for example in the case of gas turbines and biomass or coal combustion.

They gain a better understanding of the influence of extrusion and blow molding on the later component behavior. As a result, production processes can be targeted in order to improve component properties - for example wall thicknesses, inherent stresses and warpage, for example for PET bottles, glass containers, plastic and aluminum profiles or fiber concrete.

Rotor-stator systems and components that deform or open and close are easier to evaluate, for example, in fluid-structure interaction or when designing hydraulic assemblies from the pump to the valve.

Velocity vectors in a valve

Fluid-structure coupling on a bent flange


The technological basis is made up of CFX and fluent solders, which have proved their worth over many years in industrial applications.

Predefined processes, such as turbomachinery or production processes (extrusion, blow molding), deliver precise results in less time.

Current benchmarks show a nearly linear scaling up to 3,072 cores. Thanks to the excellent acceleration, extremely complex geometries can be solved with the greatest possible accuracy and the processing times can be greatly shortened.

The influence of mechanics, temperature and electromagnetic fields can be evaluated in direct interaction. Coupled analyzes, such as fluid-structure interaction (FSI) or system simulation, enable a perfectly matched design.

ANSYS Modules


Depending on the task, you can scale the scope of your analysis system according to your needs by combining the following ANSYS modules:

Advanced technology for the representation of complex physical phenomena such as rotating machines, multiphases, reactions and extended models in different fields - for example radiation by solid bodies or higher turbulence models.

Focused functionality for an efficient introduction to flow simulation.

For the fast design of turbomachines.

For automated geometry generation in turbomachines.

For specialized network generation for turbomachines based on high-quality hexahedron networks.

For coupled analyzes of fluid flow and electromagnetic fields, usually for the determination of Lorentz forces acting on the fluid - for example, in the case of electromagnetic stirring.

For the simulation of extrusion and blow molding in order to determine the properties of produced components and to significantly reduce the interactive commissioning process of the production plants.