Reference Center >> HPC Applications >> Computational Fluid Dynamics CFD
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Computational Fluid Dynamics CFD
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AcuSolve is a general-purpose finite element based CFD flow solver that has evolved through years of development experience and real world applications feedback. AcuSolve is a unique and significant offering in the CFD solutions marketplace. AcuSolve's advantage is its superior robustness, speed and accuracy. Users are able to rapidly obtain quality solutions without having to iterate on solution procedures. AcuSolve is an ideal enabling technology for scientists and engineers who seek seamless integration of a powerful solver into design and analysis applications without requiring significant CFD expertise.
CFD++ is based on unified grid, unified physics and unified computing methodology in an advanced numerical discretization and solution framework.
CFL3D is a long-standing Navier-Stokes CFD code developed at NASA Langley Research Center for solving 2-D or 3-D flows on structured grids. The code has been in existence since the late 1980's, is very reliable and stable, and has many capabilities and options.
GENERAL FEATURES OF THE CFL3D FLOW SOLVER
http://cfl3d.larc.nasa.gov/Cfl3dv6/
CFX is a modular suite of CFD (Computational Fluid Dynamics) software for modeling fluid flow, heat transfer and other related phenomena.
Developed and supported from the CFX UK offices at Harwell in Oxfordshire, CFX is widely used within academia and industry in:
Fire is mostly used by researchers and development engineers working in internal combustion (IC) engine engineering. It is integrated into their specific product development processes. FIRE enables users to prove the quality and performance of their work even before prototype hardware is created. Development cycles are shortened and costs are reduced, even though the number and complexity of the tasks being performed is significantly increased.
FIRE’s major grid generation tool is FAME, a flexible, yet automated environment that provides computational models containing mainly hexahedral elements. The tool is highly efficient and delivers high quality models. Running fully automated processes as FAME Assembly and FAME Engine +, grids that have been generated using FAME can be assembled to domains of further increased complexity or they may become part of a model representing a domain with moving boundaries. That way, even inexperienced users are enabled to generate grids for geometries such as internal combustion engines with low effort.
The FIRE Main Program is a general fluid flow solver employing the finite volume discretization method resting on integral conservation statements applied to a general polyhedral control volume. The solver is capable of handling models including an arbitrary number of moving boundaries. For simulating rotating elements FIRE offers sliding and Multiple Frame of Reference technology. FIRE simulations may be set up in steady or transient mode. Higher order differencing schemes and two time integration schemes are available. To solve the linear systems pre-conditioned conjugate gradient methods are applied. As Turbulence Modeling is the basis for precisely simulating most real-world applications, FIRE offers a comprehensive set of respective models:
The FIRE Post-processor provides all functions required to monitor the solution progress and quality, to visualize, analyze and present CFD simulation results. It supports operations on three-dimensional result data by running scripts as well as macro and formula editor capabilities. It also allows importing selected AVL test bed data enabling a direct comparison of test and simulation data.
Flow-3D is a powerful modeling tool that gives engineers valuable insight into many physical flow processes. With special capabilities for accurately predicting free-surface flows, FLOW-3D is the ideal software to use in your design phase as well as in improving production processes.
FlowVision is a general purpose Computational Fluid Dynamics (CFD) software for modeling 3D laminar and turbulent steady and unsteady gas and liquid flows in complex geometries. Finite Volume approach forms the basis for the software numerical contents. High-accuracy numerical schemes, efficient numerical methods, and robust physical models guarantee reliable results. FlowVision is an easy to use CFD code with intuitively straightforward interface. The post-processor provides a user with up-to-date visualization methods and data processing tools.
With the acquisition of Fluent by ANSYS, Inc. (NASDAQ: ANSS), additional state-of-the-art computational fluid dynamics (CFD) technology will be incorporated into the impressive ANSYS suite of CAE simulation solutions. For over twenty years, Fluent has been a leader in the development of CFD software for simulating fluid flow, heat and mass transfer, and a host of related phenomena involving turbulence, reactions, and multiphase flow.
Solves steady and unsteady 3-D, Reynolds-Averaged, Navier-Stokes Equations (RANS) and following subsets:
Gridpro is an automatic, object-oriented, multiblock grid generator.
http://www.gridpro.com/gridpro/index.html
GT-SUITE, which contains GT-POWER, is a single software tool for modeling and simulation of systems in automotive and transportation engineering and beyond. It is based on a multi-physics platform, but offers higher-level, added-value toolboxes specifically tailored to a continually broadening set of applications:
GT-SUITE, being a single program, allows modeling of these applications both independently, as has traditionally been the norm in the industry, or with several of these systems in one model to get the full integrated effect of the system. For example consider the cooling circuit with Charged-Air-Cooler & EGR Cooler and its link to engine performance: this can be readily analyzed in a single model for warm-up analysis & for the design of combined cooling circuit and engine.
http://www.gtisoft.com/GT-SUITE_Product.html
KIVA, a transient, three-dimensional, multiphase, multi-component code for the analysis of chemically reacting flows with sprays has been under development at the Los Alamos National Laboratory for the past several years. The code uses an Arbitrary Lagrangian Eulerian (ALE) methodology on a staggered grid, and discretizes space using the finite-volume technique. The code uses an implicit time-advancement with the exception of the advective terms that are cast in an explicit but second-order monotonicity-preserving manner. Also, the convection calculations can be subcycled in the desired regions to avoid restricting the time step due to Courant conditions. The range of validity of the code extends from low speeds to supersonic flows for both laminar and turbulent regimes. Arbitrary numbers of species and chemical reactions are allowed. A stochastic particle method is used to calculate evaporating liquid sprays, including the effects of droplet collisions and aerodynamic breakups. Although specifically designed for performing internal combustion engine calculations, the modularity of the code allows it for easy modifications for solving a variety of hydrodynamics problems involving chemical reactions. The code has found a widespread application in the automotive industry.
http://www.lanl.gov/orgs/t/t3/codes/kiva.shtml
The NEWT solver features:
http://www.cambridgeflowsolutions.com/products/associatedtech/newt/index.php
OVERFLOW-D is a general purpose Navier-Stokes solver for problems that may involve relative motion between configuration components. The code uses overset structured grids to accommodate arbitrarily complex geometries while, on a component-wise basis, retain the computational advantages inherent to structured data. OVERFLOW-D is based on the well known NASA OVERFLOW code, but has been significantly enhanced to accommodate moving body applications, facilitate accuracy control via solution adaption, and run efficiently on scalable computers. OVERFLOW-D employs a powerful discretization paradigm that partitions the problem domain into near-body and off-body regions. The near-body region includes the surface geometry of all configuration parts being considered and the volume of space that extends a short distance above the respective surfaces. The near-body portion of the domain is discretized in a classical "Chimera'' fashion. Near-body grids are generated in a pre-process using standard grid generation packages. The off-body portion of the domain encompasses the near-body domain and extends to the far-field boundaries of the problem. OVERFLOW-D automatically discretizes the off-body domain with uniform Cartesian grid components (structured) of varying levels of resolution capacity. By default, off-body resolution capacity is set based on proximity to near-body components. Users can run simulations on the near-body and default off-body grid systems, or can enable solution adaption. With adaption enabled, OVERFLOW-D allocates off-body grid resolution based on proximity to near-body components and results of estimates of solution error. Of course, error estimation is carried out automatically by OVERFLOW-D. In all cases, OVERFLOW-D organizes grid components into groups of equal size. Then, on parallel computers, groups are assigned to processors. Scalability is realized in a group-wise fashion. OVERFLOW-D can be used to simulate moving body applications that involve arbitrary rigid-body motion, prescribed motion, or maneuvers. OVERFLOW-D has a general 6-degrees-of-freedom model (6-DOF) that allows body motion to respond to aerodynamic loads as well as applied forces and moments associated with separation mechanisms. All OVERFLOW-D functionality is tightly coupled, including 6-DOF, domain connectivity, solution adaption, etc., in order to maximize computational efficiency for such applications.
http://halfdome.arc.nasa.gov/cfd/CFD4/New_Page/Overflow-D2.htm
Pointwise is a software solution to the top problem facing engineering analysts: mesh generation for computational fluids dynamics (CFD).
PowerFLOW is a revolutionary CFD (Computation Fluid Dynamics) solution for simulating some of the world's most complex fluid flow problems. It is built on a unique technology called the Lattice Boltzmann method, which has several distinct advantages over conventional CFD technology. Simulations are inherently transient, stable, convergent, and most importantly, accurate. In addition, with PowerFLOW's immersive grid technology, creation of the fluid grid is completely automatic, and the generated fluid grid captures all the details of your geometry, no matter how complex.
The complete Power FLOW software suite includes the flow solver, the grid generation engine (called the discretizer), and a variety of complementary tools including PowerCASE for case setup, PowerVIZ for analysis and visualization of simulation results, PowerCOOL for simulating heat exchangers, and PowerTHERM for simulating conduction and radiation. In addition, PowerFLOW simulations are highly scalable, often running on systems with hundreds of processors.
http://www.exa.com/pages/pflow/pflow_main.html
With a 20-year heritage of providing solutions to the most complex problems that fluid mechanics has to offer, Star-CD has a long established a reputation for being the most versatile platform for industrial CFD simulation.
http://www.cd-adapco.com/products/STAR-CD/
Tecplot is Numerical Simulation & CFD Visualization Software. It combines vital engineering plotting with advanced data visualization into one tool.
With one tool you can:
http://www.tecplot.com/products/360/
TGrid is a specialized preprocessor used to create unstructured tetrahedral and Hex-Core meshes for complex and very large surface meshes. TGrid offers advanced prism layer creation tools including collision detection and sharp corner handling. TGrid is also equipped with an advanced wrapping procedure that produces a high quality, size function driven connected triangular surface mesh from a large set of unconnected faceted surfaces. TGrid's robust, automated algorithms save preprocessing time and generate high-quality meshes for CFD analysis in FLUENT.
http://www.fluent.com/software/tgrid/index.htm
Vectis is a three-dimensional fluid dynamics program that has been developed specifically to address fluid flow simulations in the vehicle and engine industries. VECTIS is developed around a completely automatic mesh generator, providing a rapid turnaround time for CFD analyses. The fully automatic mesh generator, unique to VECTIS, provides a distinct advantage over most other commercial CFD tools; in that it ensures CFD is an integral part of modern engineering development programs.
http://www.ricardo.com/en-gb/Software/Products/VECTIS/
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