Fluids

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.

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ANSYS Offers Better Accuracy

As the global leader in engineering simulation, ANSYS helps 40,000 of the world’s most innovative companies deliver better products faster. By continually developing and acquiring the most advanced technologies and integrating them into a unified platform, we provide the complete simulation software capable of complex, multiphysics solutions.

Fluids

Computational Fluid Dynamics
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.
CFD simulation for every engineer
ANSYS CFD accelerates workflow and enables better, faster decisions across all levels. Novice users can quickly become productive while user features empower experienced engineers to deliver deep insights.
More CFD Solutions
ANSYS Fluent and ANSYS CFX provide fast results for virtually any fluid or multiphysics application, with industry-leading accuracy and robustness. This serious CFD software has the wide-ranging capabilities needed to solve your design problems today and in the future.
Solve Complex Fluid Problems
Best-in-class CFD solvers extend the limits of what is possible so you can maximize your product’s performance and efficiency. Use ANSYS CFD to innovate with breakthrough capabilities in turbomachinery, turbulence, combustion and in-flight icing.
Make better, faster decisions
Recent innovations to modeling, meshing, the user environment, high-performance computing and post-processing accelerate your time to results without compromising accuracy.

The Most Advanced Simulation for Any Fluids Application

Single Phase, Non Reacting
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.
Heat Transfer
Many types of industrial equipment require devices that 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. ANSYS delivers fast and accurate solutions for the widest range of combined fluid-solid heat transfer problems, including conjugate heat transfer (CHT)
Free Surface
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.
Reacting Flows & Combustion
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.
Shape Optimization
Instead 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.
Dispersed Multi-phase Flows
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.
Turbomachinery
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.
Simulating Aircraft Icing
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.
Particle Flows
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.
Fluid-Structure Interaction
Fluid flow exerts pressure on solid objects and deforms them. That deformation can, in return, impact the fluid flow around the object. ANSYS multiphysics accurately captures the interplay of these forces so you can optimize your product’s performance.
High Rheology Material
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.
Thermal FSI
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 multiphysics can predict performance by analyzing these effects across numerous start-up and shutdown cycles.