real world design & problems fluid flow engineering solving Computational Fluid Dynamics System
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1 C F D Computational Fluid Dynamics System solving real world engineering design & problems aerospace architecture automotive biomedical chemical processing electrical cooling environmental marine metallurgy fluid flow nuclear energy power generation A D A P T I V E R E S E A R C H
2 Why CFD? CFD is a powerful engineering tool for simulating all types of fluid flow. CFD simulations provide detailed descriptions of flow characteristics including values for velocities, pressures, temperatures, and other variables. CFD significantly reduces design and development time, provides more detailed information than physical experiments, and quickly simulates a wide range of flow conditions. The results are improved designs, lower risk, and shorter time to market for your product or process. 2
3 The Power of CFD2000 CFD2000 is an advanced, general-purpose computational fluid dynamics (CFD) software system for simulating a wide range of fluid flow, heat transfer, and mass transfer problems including: Subsonic, transonic, and supersonic flow regimes - Chemical reactions Multi-phase - Turbulence - Compressible/incompressible - Free surface Fire Simulation - Conjugate heat transfer - Porous media - Moving grid The CFD2000 system is a single integrated program providing the necessary tools for simulating real flows. The system includes modules for geometry creation and grid generation, a three-dimensional Navier-Stokes equation solver, and advanced scientific visualization. INTELLIGENT & INTUITIVE The CFD2000 system is exceptionally easy to learn and use and can be quickly mastered by scientists and engineers. CFD2000 is accessed with a state-of the art graphical user-interface (GUI) which provides full control of all the program s functions, The GUI menu structure represents a logical progression through the process of fluid flow simulation that is intuitive for experienced CFD investigators and a convenient guide for beginners. Based on an advanced 3D windowing scheme, CFD2000 s intelligent GUI guides you through all steps of a flow simulation. Using pull-down menus and a combination of mouse and keyboard inputs, you can define the flow model, control and monitor the progress of the analysis, and examine the results, The software provides intelligent default values and performs extensive error checking on inputs. arch.co m 3
4 CFD2000 guides you through the entire CFD modeling process. EXPANDABLE CFD2000 provides flexibility and expandability like no other CFD code on the market. No matter how broad the range of built-in capabilities and switch-on modeling options offered by any software, the diversity of the physical world will often impose the need for further modification or extension. CFD2000 has been designed to facilitate inclusion of any userspecific feature through its open architecture and Fortran source-code routines. The flexible open source architecture allows for all built-in properties, physical models, and boundary conditions to be modified or extended. In addition, solution control options, such as time-step computations and output data formats may also be customized. CFD2000 displays the units expected for all input data. The user may also automatically convert the expected units to more familiar quantities through the user-specified units conversion file. Units conversion allows the user to tailor inputs of length, mass, and energy to the most convenient forms required. DATABASE LIBRARIES Fluids and solids properties are provided in ready-to-use libraries. New fluids/solids can also be added to the database libraries, and re-used in newly developed CFD models. In addition, libraries for chemical species and chemical reactions are easily accessed, and new species and chemical reaction data can be included. 4 arsales@ada ptiv e-researc h.co m
5 GEOMETRY & MESH GENERATION The requirement to create and visualize a complex three-dimensional shape and then discretize the domain by the generation of a computational grid is a critical operation in computational fluid dynamics. CFD2000 is designed to circumvent the tedium which, historically, has been associated with building high-quality three-dimensional structured grids. CFD2000 provides the tools for constructing and modifying model geometries. The design engineer works with a combination of mouse and keyboard input in a multiplewindow environment to create definitions of the physical geometry. The software can also import geometry in IGES format from CAD packages. Once the geometry task is completed, CFD2000 allows you to separate the definition of the physical geometry from the generation of the computational grid. Thus, the edge and surface definitions are retained regardless of the density of the grid points in the final mesh. CFD2000 offers you a choice among regular (Cartesian), cylindrical-polar, or body-fitted coordinate (BFC) systems a choice that increases power and flexibility for your flow simulations. BFC grids conform to the local geometric features of the model making it universally applicable to arbitrary configurations. CFD2000 a powerful, cost-effective CFD system. arch.co m 5
6 STORM CFD SOLVER STORM has been extensively validated against experimental data. At the core of the system is a three-dimensional viscous flow solver that combines a strongly conservative finite-volume formulation with advanced features. Features such as collocated grids, high-order differencing schemes, and flexible user-accessible source code architecture produce a state-of -the-art CFD system that is powerful, efficient, and expandable. Storm is fast, efficient, and accurate. The finitevolume treatment of the equations in general curvilinear coordinates produces accurate results on any smoothly varying grid even in the presence of significant non-orthogonality. By utilizing the integral form of the equations, conservation is enforced exactly. The PISO algorithm (pressure-implicit with splitting of operators) produces superior steady-state and transient solutions. Grid sequencing improves convergence rates by as much as an order of magnitude for many applications. This powerful feature allows automatic grid density control during the solution procedure. The user may coarsen or refine the grid during program execution in any or all coordinate directions. STORM performs the grid refinement, updates boundary conditions and monitor point locations, and interpolates the solution onto the new grid automatically. 6 arsales@ada ptiv e-researc h.co m
7 CFD SOLUTION ANALYSIS CFD2000 includes the most advanced scientific field visualization software on the market Fieldview. With Fieldview, you have at your fingertips instant access to a powerful set of analysis tools that can be used at any time to compute flow rates, examine recirculation and boundary layer regions, or even track particle paths. And since Fieldview is completely integrated with CFD2000, this power and utility is available to you with just a few clicks of your mouse. Fieldview is quick and easy to use, It can be started either upon completion of your CFD2000 simulation, or while execution is still in progress ( snapshot mode). Once started, all grid values, boundary surface locations, and solution field variables from your solution are loaded automatically. No file manipulation is required, The simple and intuitive Fieldview interface then gives you access to a full range of advanced visualization capabilities such as cutting planes, iso-surface and contour map generators, streamlines and particle trajectory animations, data probes and profile plots, Surface integrals and customized scalar computations can be performed using the built-in CFD calculator. And you can even create wholefield time-series animations and save the results in a number of standard video formats. Visualization has become an indispensable component of CFD. By incorporating Fieldview into the standard CFD2000 package, this realization has been brought full circle and delivered in a single, seamlessly integrated package. arch.co m 7
8 APPLICATIONS CFD2000 is used to model fluid flow problems in engineering equipment, the environment, and in living systems. Engineers use CFD2000 as a design and evaluation tool to quickly and inexpensively model alternative designs over a range of parameter values. Scientists use CFD2000 to predict and to better understand natural flows including environmental and physiological flows. CFD2000 is used by industry, research centers, and academic institutions to model fluid flows in a wide range of applications including: Aerospace --- Aerodynamics including flows over airfoils and aircraft fuselages. Calculation of lift coefficients, drag, and moments. Flows in ducts, manifolds, valves, and nozzles, Transient compressible flows, supersonic flows, and combustion processes Architecture Airflow around buildings, wind loads on buildings. Pollution modeling and toxin dispersal calculations in urban settings, Air circulation patterns inside buildings: heating, ventilation, and air conditioning (HVAC) performance. Automotive External aerodynamics. Flows in manifolds, valves, and ducts. Heating and cooling in passenger compartment. Combustion processes inside cylinders, catalytic exhaust systems. Spray atomization of fuel injectors. Biomedical physiological flows including blood flow in vessels, aneurysms, artificial heart valves, and natural organs. Flows in biomedical devices including blood pumps, tubes, and sprays. Non-Newtonian blood viscosity models, two-phase flows, moving boundaries. 8 arsales@ada ptiv e-researc h.co m
9 Chemical Processing Chemically reacting flows and combustion processes. Multi-step finite rate, instantaneous, and equilibrium chemistry models. Chemical vapor deposition (CVD) with surface and gas phase reactions. Electronics 3D simulation of air flow and heat transfer in electronic systems. Modeling of heat sinks, individual components, multi-chip modules, and computer boards. Environmental Atmospheric flows and air pollution transport, toxin dispersion into the environment, Nox emission, and groundwater flows. Marine External hydrodynamics, calculation of lift coefficients, drag, and moments, Toxin dispersal in lakes and streams. Materials Processing Injection molding processes. Material deposition from gas phase and surface reactions. Flow of molten glass and glass furnace modeling. Metallurgy Liquid metal flows, mold filling, and solidification processes. Metal cooling systems, and molten metal flows in ladle and tundish devices. Nuclear Energy/Power Generation Reactor cooling systems, containment vessels, heat exchangers, industrial burners, boilers, pipes, valves, and pumps. Other No matter what your specialty, if your product or process involves fluid flow and heat transfer, CFD2000 can help you analyze and model your fluid flow problems. arch.co m 9
10 CAPABILITIES Steady-state and transient processes Laminar flows Turbulence models - LES - k-epsilon STD - k-epsilon RNG - k-epsilon Chen-Kim - low RE number Newtonian and non- Newtonian fluids Compressible and incompressible flows Subsonic through supersonic flows Heat transfer - Conduction - Natural, forced, and mixed convection - Radiation Chemical reaction models - Frozen chemistry - Equilibrium chemistry - Instantaneous reactions - Finite rate (forward and backward reactions) Chemical vapor deposition - Gas phase reactions - Surface reactions - Rotating surfaces Lagrangian multi-phase flows - Momentum and thermal coupling with fluid - Evaporation - Wall reflectivity or adhesion - Particle collision - Particle breakup model Free surface flows Moving grid - Points, edges, surfaces, volumes - Translation, rotation, linking - Domain interpolation Fluids and solids library Switch-on physical model - Filters, screen, solids - Porous medio - Walls (solid, porous, fixed temperatures, heat, flux, moving) - Symmetric boundaries - Cyclic boundaries in any coordinate direction - Swirl flow (for axisymmetric flow) - General source (or sink) boundary (mass, momentum, energy, chemical concentrations, user variables) NUMERICS Finite-volume Navier-Stokes equation solver PISO algorithm Whole-field linear equation solvers -Alternating Directions lmplicit (ADI) -Direct solver -Incomplete lower and upper (LU)decomposition Automatic time-stepping Structured, collocated grids Solutions in one, two, or three spatial dimensions High order convection schemes 10 arsales@ada ptiv e-researc h.co m
11 Tools for creating & modifying geometries Move model EASY TO USE Axisymetric Create geometry Modify geometry Copy geometry Assemble volumes Delete geometry Undo delete Import CAD Create line Create arc Create spline Space curve Group edges Create circle Create rectangle Group surfaces Build volume Curve-to-surface Project geometry Revolve geometry Scale model Translate geometry Rotate geometry Break edge Sub-divide edge Slice region Auto-decomposition 2D Auto-decomposition 3D Fully interactive menu-driven input User customizable Point-and-click boundary conditions Geometry display tools Flowfield initialization tools Real-time convergence monitoring Error diagnostics Example library Prompt line help Versatile output control GEOMETRY & MESH CAD data import capability Primitive object library Grid-Independent geometry Geometry creation and modification tools Copy, scale, translate, and rotate geometry functions Individual edge control for node distribution Automatic grid generation/optimization Grid sequencing Surface of revolution Transfinite interpolation Point and click boundary conditions SOLUTION ANALYSIS Particle tracking Streamlines Cutting planes Data probes Iso-surfaces Contour maps Animation Image rendering Profile plots User functions CFD calculator Surface Integrals Time-series output 2D plotting arch.co m 11
12 CFD2000 Brochure Printed in the United States of America Simunet Corporation All Rights Reserved
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