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.
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.
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.
CAVITATION
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.
DISPERSED MULTIPHASE 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.
FREE SURFACE FLOWS (MULTIPHASE)
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.
FLUID STRUCTURE INTERACTION
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.
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.
HPC – FLUIDS
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.
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.
REACTING FLOWS AND 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.
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