CFX Product Introduction
October, 2003
ANSYS Incorporated
Sales Introduction
Outline
? ? ? ? ?
CFX Organization CFX Target Markets CFX Product Summary CFX Sales Differentiators ANSYS-CFX Future Plans
Sales Introduction
1
History of ANSYS - CFX ANSYS-CFX roots from two companies: ? Advanced Scientific Computing, “ASC”
– Waterloo, Canada, 1985 – TASCflow: mechanical / turbo market
? Atomic Energy Authority, “AEA”
– Harwell, England, early 1980’s – CFX-4: chemical process industry
Sales Introduction
History of ANSYS - CFX AEA purchases ASC, February 1997 ? Integration at all levels ? CFX-4 + TASCflow + new tech = CFX-5
+
Sales Introduction
2
History of ANSYS - CFX ANSYS purchases CFX, February 2003 ? Today: distinct business unit, “FBU” ? Future: evolution of CFX within ANSYS
Sales Introduction
Product Families
ANSYS, Inc.
MBU ANSYS
Core Technologies
EBU ICEM-CFD
FBU CFX
Integration Platform
Sales Introduction
ANSYS Workbench
3
CFX Offices and Agents Today
? Regional business units split over 7 ANSYS-owned offices, plus agents ? CFX offices: Waterloo, Canonsburg, Sacramento, Harwell, Munich, Yokohama, Bangalore ? Agents: Australia, China, Italy, Greece, Russia, Brazil, Korea, Berlin, Scandinavia, South Africa, Taiwan
Sales Introduction
CFX Current Market Areas ? Rotating Machinery: “accuracy”
– – – – – – – –
Sales Introduction
Gas turbine Water turbine Pumps, compressors General mechanical Chemical reaction and production Manufacturing processes Food industries Metal industries
? Chemical Process Industries: “physics”
4
CFX Current Market Areas ? Power Generation: “accuracy + physics”
– Steam, gas and water turbines
– Boilers, condensers, hoods – Coal, gas, oil burners – Heat transport and related processes
? Other:
– – – –
Sales Introduction
Automotive HVAC Aerospace Marine
Multiphase and CPI Examples
Courtesy of BP-Amoco Paul Scherrer Institute, Switzerland
Sales Introduction
5
Rotating and Power Examples
Sales Introduction
Power Generation Example
7 million nodes, 2 frames, 2 phases, transient, 32 CPU’s
Sales Introduction
6
CFX Product Summary ? CFX-5 is the flagship product
– Best-in-class CFD technology – Seven year product transition complete – Modules for meshing, pre processing, solver, post processing – Head-to-head with Fluent and Star CD
? Sector specific (Turbo) products
– Geometry: BladeGen & BladeGen+ – Meshing: TurboGrid I & TurboGrid II
Sales Introduction
CFX Product Summary
CFX-5 core technologies and differentiators: Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
7
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
Automatic Mesh Generation ? Core technology: state-of-the-art hybrid element mesher (four 3-D elements) ? High quality best-practice meshes for CFD ? Automatic response to:
– Curvature – Edge proximity – 3D proximity – Orthogonality – Boundary layers
Sales Introduction
8
Grid Connections, Multiple Meshes
? Connect different meshes together ? Benefit: flexibility for the user ? Automatic, robust, accurate connection that works
Sales Introduction
CFX-BladeGen, BladeGen+ ? Turbo blade geometry design tool ? Capabilities:
– – – – – Blade geometry design Embedded sector-specific knowledge Geometry output to TurboGrid, CAD Rapid, highly automated, CFD analysis Highly interactive PC program
? Future: core technology integrated into Workbench (vertical application)
Sales Introduction
9
CFX-BladeGen, BladeGen+
Blade geometry design plus automated CFD analysis
Sales Introduction
CFX-TurboGrid
? Automated meshing for turbomachines
– high quality hex meshing – built-in turbo meshing expertise
? Created for Designers
– fast, intuitive, repeatable – high-quality CFD grids
? CFX-TurboGrid technology evolving significantly
Sales Introduction
10
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
Accuracy: Numerics
? Core technology: elements, like ANSYS (competition: volume-filled method) ? Accurate numerics on by default (competition: off) ? High accuracy per node
– Hex: 24 integration points per control volume (competition: 6) – Tet: 60 integration points per control volume (competition: 4) Integration points (IP)
Sales Introduction
Element Vertices Control volume
X
X
X
X
X
X
X
X
11
Accuracy Matters to the Analyst
Upwind Advection Second Order Advection
Sales Introduction
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
12
Accuracy: Turbulence
? Core technology: state-of-the-art turbulence ? Some users need choice: 12+ models ? Most users are not turbulence experts, and simply want a great answer ? CFX-5 recommends “SST model” as the default (competitors: k - ε)
Sales Introduction
Advanced Turbulence Models
Advanced models, LES and DES, “predict” turbulent structures
Sales Introduction
13
Benefit of Accuracy
AIAA drag workshop
Separated Flow
Separated Flow
Sales Introduction
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
14
Reliability: Coupled Multigrid Solver
? “Coupled multigrid solver” is a key to robustness: solve the equations well ? Benefit: simulation succeeds, fast ? Highly convergent, industrial strength ? Coupled hydrodynamics, coupled reactions, coupled multiphase, ... ? Unique to the CFD industry
Sales Introduction
Benefit: Robustness = Time Saving
Convergence in 80 iterations
Turbocharger, transonic, two frames of reference, 1.4 million nodes, ICEM Hexa
Sales Introduction
15
Robustness: Coupled Multigrid
? ? ? ? 5.8 million nodes Grid aspect ratio 5000:1 Drag stable in 110 steps Transient parallel calculation, 16 Linux PC’s, 20 hours
Sales Introduction
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
16
Speed: Parallel Computing ? Core technology: parallel processing ? Real benefits:
– Solve larger simulations – Less wall-time for simulations – Use all available computing resources
? Trivial to use, fully automatic All CFX-5 models implemented for scalable parallel computing, no exception
Sales Introduction
Parallel: CPU Scalability
Parallel Scaling Using Different Interconnects
70.0 65.0 Parallel Speedup 60.0 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 20 30 40 50 60 70 Number of CPUs
Sales Introduction
SMP 100 Base-T Gigabit Hyperfabric2 ideal linear
? Test results courtesy of Dr. M. Ehrig, HPTC ? PA 8800 superdome ? 80 million nodes ? Low data transfer algorithm
17
Parallel Mode as Reliable as Serial Mode
Sequential
Parallel, 2 CPU
Parallel, 4 CPU
16 Partitions
Sales Introduction
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
18
Physics: Appropriate Models ? Wide range of physics models available ? Models work in any combination ? Models do not break “fundamentals” All CFX-5 models exploit coupled multigrid, in parallel, with accurate numerics and accurate turbulence, in any combination
Sales Introduction
Physics: Best-in-Class, Interaction
? Turbulence models: 3 zero eqn, 1 one eqn, 6 two eqn, 5 six eqn, 2 LES/DES Frame change models: stage, frozen rotor, transient r-s Mixture models Eulerian multiphase: N- phase, homogeneous, inhomogeneous, ASM Lagrangian multiphase Combustion models: EBU, coupled multistep, kinetic, flamelet, premixed, partially premixed, NOx, soot, ILDM... Real fluid models ? Radiation models: P1, DTM, Monte Carlo, multiband, multigrey, specular, anisotropic scattering... Free surface models: surface tension, wall contact Phase change models: cavitation, boiling, condensation, evaporation, solid/liquid Heat transfer models High speed flow models Transient models Moving mesh ...
? ? ?
? ?
? ?
? ? ? ? ?
?
Full feature matrix interaction, in parallel, coupled multigrid
Sales Introduction
19
Wide Range of Models
Sales Introduction
CFX Product Summary
CFX-5 core technologies and differentiators Geometry: Accuracy: Reliability: Speed: Physics: Flexibility: meshing strategy numerics and turbulence solution strategy parallel computing appropriate models openness of the system
CFX-5 sets a new standard for high performance CFD, by its unique strategy, differentiating it from other CFD software.
Sales Introduction
20