Computational Fluid Dynamics (CFD) is a tool with amazing flexibility, accuracy, and breadth of application. But serious CFD, the kind that provides insights to help you optimize your designs, could be out of reach unless you choose your software carefully. To get serious CFD results, you need serious software.

ANSYS CFD goes beyond qualitative results to deliver accurate quantitative predictions of fluid interactions and trade-offs. These insights reveal unexpected opportunities for your product—opportunities that even experienced engineering analysts can otherwise miss.

Computational Fluid Dynamics

More About Computational Fluid Dynamics

  • With ANSYS CFD software, you can model and simulate all fluid processes, including fluid-structure multiphysics interactions. Projects well-suited to this powerful software include automobile engine gas combustion, chemical solution movement through pores in a shale gas formation, jet engine turbine air passage, and heat transfer among printed circuit board components.
  • Best-in- class CFD solvers extend the limits of what is possible so you can maximize your product’s performance and efficiency. You can use ANSYS CFD to innovate with breakthrough capabilities in turbomachinery, turbulence, combustion and in-flight icing.

Applications of Computational Fluid Dynamics

Recent innovations to modeling, meshing, the user environment, high-performance computing and post-processing radically accelerate your time to results without compromising accuracy. They enable novice users to quickly become productive while giving experienced users greater opportunities to excel.

Single phase, non-reacting flows are found in wide-ranging applications from automobile and aircraft external aerodynamics to aero-acoustic noise and submarine propellers. These flows could include heat transfer and be steady or unsteady, but do not include phase changes or reactions. ANSYS CFD accurately models real world flows including turbulence. More importantly, ANSYS tells you when single phase flows become multiphase, for example with cavitation.

Turbomachinery is the most rewarding and the most challenging of simulations. ANSYS delivers innovations at every stage of the simulation process, from modeling to meshing, solving to post-processing. Whether designing a jet engine, wind turbine or turbocharger, ANSYS helps you to extend the limits of what is possible so you can maximize your product’s performance and efficiency.

Cavitation happens when vapor bubbles form in a liquid because flow dynamics cause the local static pressure to drop below the vapor pressure. Without accurate prediction of cavitation, users cannot effectively optimize designs and set operating parameters and limits, potentially exposing their products to unexpected vibration and damage.

ANSYS Multiphysics simulations help you investigate how forces interact to impact product performance including deep insight into how fluid forces can move and deform structures.

Fluid flows may involve the transport of particulates such as solid particles in a gas or liquid, liquid drops in a gas, or gas bubbles in a liquid. ANSYS CFD includes a wide range of models including water–sand mixtures in which erosion is of interest, water spray into an air stream, oil droplet injection in a combustion chamber and coal particulates burning in an air mixture.

In-flight icing is a highly complex physical phenomenon that is extremely difficult and expensive to model with physical testing. Regulatory changes and industry focus on the particular hazards presented by high-altitude ice crystals and supercooled large droplets have further challenged the design process and the time to market for new aircraft and technology. ANSYS FENSAP-ICE provides state-of-the-art, 3-D design and aid-to-certification solutions.

Devices need to optimize heat transfer between fluids and solids to maintain a constant temperature and maximize performance, reduce maintenance costs and extend the life of the machine. Fluids can cool and heat machine parts, process equipment,engine components and other solids. These thermal effects can in turn deform the walls or parts that are being cooled or heated. ANSYS delivers fast and accurate solutions to predict performance for the widest range of fluid-solid heat transfer problems, including conjugate heat transfer (CHT) and thermal fluid–structure interaction (FSI)

Moving bubbles in a slurry bubble column reactor, gasoline droplets from spray in an IC engine, and catalyst particles in a fluid catalytic cracker are all dispersed multiphase flows. Empirical models — such as drag, virtual mass forces or lift forces — are used to describe the interaction between phases. ANSYS CFD provides sophisticated turbulence and physical models that accurately simulate the toughest problems, including cavitation and boiling.

Engineers need to optimize processes such as extrusion, thermoforming, blow molding, glass forming, fiber drawing and concrete shaping. CFD accelerates design while shrinking energy and raw material demands to make your manufacturing processes more cost-effective and environmentally sustainable

Engineers use ANSYS CFD simulation to design lower-emission combustion systems without spending millions of dollars on physical mockups and costly trial-and- error testing. Accurately predicting real-life fuel effects requires complex algorithms that describe the physics and thermodynamic behavior of combustion, a detailed understanding of the chemical makeup of the fuels to be burned and types of engine to be deployed.

Many flow applications include two or more fluids with separate flow fields. Examples include water-steam flows in a boiler, oil-water- gas flows in an oil well, particles in a gas, bubbles in a liquid, and the free surface of a liquid beneath a gas. ANSYS CFD accurately characterizes complex multiphase flows such as cavitation so you can effectively predict the operating limits of a valve or pump.

ANSYS HPC enables CFD engineers to better simulate product performance and integrity in less time. In addition to efficiently scaling CFD solvers to over 129,000 cores, ANSYS has been investing heavily to ensure the entire CFD process, from prep to meshing to post-processing, are all taking advantage of HPC to speed the total time to solution.

nstead of guessing geometry parameters and simulating hundreds of design points, ANSYS smart shape optimization tools give fast, specific insight into finding the ideal solutions for problems such as reducing pressure drop, optimizing drag, lift or heat transfer. For example, the ANSYS Adjoint Solver recommends and even automatically implements design enhancements, morphs the mesh to a more optimal shape and predicts the performance improvement.

Flagship Products

Our flagship products provides the best in class computational mechanics to solve and analyse the problems that involves the fluid flow, our software suite provides mechanism to provide simulation for complex flows.

CFD Enterprise

ANSYS CFD Enterprise includes everything in CFD Premium, a serious CFD bundle with full versions of ANSYS Fluent and ANSYS CFX, to provide fast results with industry-leading accuracy and robustness.

CFD Premium

The most advanced companies in the world are deploying CFD simulation in a big way to meet and beat market demands. But CFD is no longer just for specialists. It includes all versions of ANSYS FLUENT.


ANSYS AIM makes upfront simulation easy by combining intuitive, guided workflows, accurate simulation results and optimization in a complete simulation tool. Integrated geometry modeling based on ANSYS SpaceClaim technology.

Featured Products

These products provide purpose driven solutions in the field of CFD with tools to evaluate and provide accurate solution to the relative field of simulation.

Combustional Tools

Combustion Tools. ANSYS combustion tools include detailed fuel models with broad and deep simulation software whose hallmark is accuracy and best-practice methodologies. These tools help you achieve your performance and fuel efficiency goals cost-effectively


FENSAP-ICE is compatible with widely-used CAD-based mesh generators so it can often reuse the meshes already produced for aerodynamic studies. Having no significant geometric limitations it is applicable to aircraft, UAVs, jet engines, nacelles, etc.

Turbo Tools

Turbocharger Design and Analysis Best Practices using ANSYS Turbo Tools. Turbochargers are increasingly used on a wide range of vehicles as one means to improve fuel economy. To aid manufacturers are challenged to deliver reliable, high performance etc.


ANSYS Polyflow accelerates design while shrinking energy and raw material demands to make your manufacturing processes more cost-effective and environmentally sustainable. R&D teams use this technology extensively to design & optimise.


ANSYS EnSight is more than the leading post-processor and visualization software program: It is a data fusion program. It consolidates data from multiple engineering simulations and other sources to help explore and explain complex systems and processes.