Computational Fluid Dynamics Solution
Powerful Computational Fluid Dynamics Software for Optimization of Product Development and Processes
Understanding the motion of liquids and gases is crucial in many branches of engineering. Until recently, studies of fluids in motion were confined to the laboratory.
But with the rapid growth in computer processing power, software applications now bring numerical analysis and solutions of flow problems to the desktop. In addition, the use of common interfaces and workflow processes makes fluid dynamics accessible to designers as well as analysts. Computational fluid dynamics (CFD) has become an integral part of the engineering design and analysis environment at many companies that need to predict the performance of new designs or processes before they are manufactured or implemented. For more than 20 years, companies around the world have trusted technology to contribute to their successes. Fluid dynamics is used in industries including aerospace, automotive, chemical processing, power generation, heating, ventilation, air conditioning, biomedical, oil and gas, marine, and many others. From ventilation comfort in large buildings to the tiniest scale in micro-pumps and nanotechnology, a wide range of applications can be addressed due to the scalable nature of fluid dynamics. ANSYS has considerable
expertise in using simulation-driven design to improve performance for pumps, fans, turbines, compressors and other rotating machinery, and the company has incorporated this into all elements of ANSYS CFX software, making it a leader in this demanding field. Specialized models for combustion, reacting flows and radiation, among others, help provide the insight into equipment and processes required to increase production, improve product longevity and decrease waste.
The ANSYS® Workbench™ environment provides a single setting for simulation from start to finish, enabling users to perform more product development tasks faster.
ANSYS Workbench delivers the basis for a full computer-aided engineering (CAE) solution from ANSYS, providing access to a wide variety of simulation technologies. All settings are persistent and are connected back to the parametric computeraided design (CAD) model, from analysis-specific modifications made to the geometry through the application of physics, solver control parameters, graphic objects created during post-processing and quantitative expressions evaluating performance.
ANSYS CFX in ANSYS Workbench Delivers Fast Design Iteration
and Parametric Studies The parameter manager of the ANSYS Workbench environment enables setup of a series of simulations to study the operating range of a product or to investigate and compare
several alternative designs. The parameterized geometry and physics description, combined with the automatic calculation of performance metrics, allows the operating range of the product or process to be established quickly. The geometry, meshing, physics specification, solution and report generation sequence is run automatically over
the range and sampling frequency of the parameters defined. Designers and analysts now are able to minimize physical prototyping and deliver better, more innovative products faster than ever. Design of Experiments as well as deterministic and robust design optimization techniques now can be applied to CFD using DesignXplorer™ technology.
ANSYS® DesignModeler™ software is a geometry tool specifically designed for the creation and modification of geometry for analysis. Using an advanced system of interfaces, ANSYS DesignModeler software gives a direct, bi-directional link to geometry models created in a wide variety of existing CAD packages. It is an easy-to-use, fully parametric CAD tool. As the geometry portal for all ANSYS products, ANSYS DesignModeler software provides a single geometry source for a complete range of
engineering simulation tools. ANSYS DesignModeler helps to create the detailed geometry required for engineering simulation, minimizes geometry rework and simplifies interdisciplinary analyses.
Providing accurate CFD results requires superior meshing technology. The meshing application within the ANSYS Workbench environment provides access to swept, hexdominant, tetrahedral and prism meshing technologies in a single location that can beapplied on a part-by-part basis. ANSYS® ICEM CFD™ meshing tools also are available
and include mesh editing capabilities as well as structured hexahedral meshing.
The ANSYS CFX physics pre-processor is a modern, consistent and intuitive interface forthe definition of the complex physics sometimes required for CFD analysis. In addition,this tool reads one or more meshes from a variety of sources and provides the user withoptions for assigning domains.
The heart of ANSYS CFX within the ANSYS Workbench interface is the coupledalgebraic multigrid solver. In brief, it achieves reliable and fast convergence by solvingthe equations well. The solver is fully scalable — achieving linear increase in CPU timewith problem size — is easy to set up in both serial and parallel run modes, and isrepresentative of true physics. The solver manager provides feedback on convergenceprogress and allows dynamic display of many criteria. When necessary, parameters can
be adjusted without stopping the solver so convergence can be accelerated. The ANSYSCFX solver runs in high accuracy mode by default, achieving accurate flow predictions robustly and reliably.
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