Simulation Set-up Features:

Modeling
¡EMCAD geometry is read directly into CFdesign
¡ELarge assembly, part, and 2D surface model capability
¡ESupport for MCAD native analysis features
¡EMCAD mouse navigation is the same inside CFdesign
¡ESpaceball navigation
¡EAutomatic flow volume creation
¡EInteractive diagnostics for geometric problem identification

Geometric Associativity
¡EPreservation of all CFdesign parameters when geometry is optimized in the MCAD environment
¡EAutomatic settings transfer between analyses in a project
¡EPersistent part names from MCAD tool
¡EAutomatic selection of many parts using partial or full MCAD part names

User Interface
¡EFull Windows support for list selection tools
¡EUser-customizable preferences for interface layout and environment set-up
¡EUser-customizable default units for output quantities
¡EUser-defined rules to automate assignment of settings based on attributes from the MCAD model
¡EEmbedded user Notes section for recording information about an analysis
¡EBuild-in Print utility
¡EInteractive feature tree listing loads, mesh sizes, materials, and providing appearance control of individual parts and materials
¡EGraphical assignment of materials to parts on native MCAD model
¡EGraphical assignment of flow direction for internal fans on native MCAD model
¡EGraphical assignment of rotation direction to rotating components on native MCAD model
¡EGraphical preview of assigned motion on native MCAD model
¡ENormal to arbitrary surface velocity specification
¡EAssociative selection for model entities in loads and mesh size specification tasks
¡EIntuitive and consistent specification of loads, mesh sizes, and materials
¡EArbitrary units selection for all materials
¡EFully customizable Material database
¡EAutomatic entity groups for automatic selection / visualization of any common items

Automatic Meshing
¡EAutomatic Mesh Sizing based on Geometry topology and feature proximity
¡EGeometry Diagnostics for problem identification
¡EAutomatic and extremely robust fast tetrahedral meshing
¡EMesh Preview mode prior to starting calculation
¡EMesh Size Estimator
¡EElement healing algorithm to automatically account for very small features
¡EMesh size application on volumes, surfaces, and edges
¡EAutomatic curve mesh sizing with biasing
¡EAutomatic mesh refinement for capturing true wall effects
¡EAutomatic part-by-part meshing for large assemblies on common desktops
¡EExtrusion meshing with automatic non-formal interface

Analysis Features:

Engineering Conditions
¡EAll pertinent flow boundary conditions
¡EAll pertinent heat transfer boundary conditions
¡ETransient boundary condition application
¡EArbitrary units selection for all boundary conditions
¡EGraphical MCAD model-based boundary condition application
¡ECartesian and true axisymmetric coordinate systems
¡ESurface part capability for very thin sheetmetal, adhesive layers, or baffles
¡ELocal or system wall roughness
¡EMass, volumetric, or pressure driven flow conditions
¡EMid-Analysis re-initialization of field variables
¡ECurrent and / or voltage driven Joule Heating analysis
¡EPeriodic boundary conditions
¡ERotating component capability
¡EFlow-driven solid motion capability
¡EUser Defined solid motion capability
¡ERadiative heat transfer through transparent media
¡EUser-defined heat source thermostat location

Flow Regimes
¡ELaminar and turbulent flow regimes with automatic transition
¡EInternal and external flows
¡EIncompressible flow
¡ESubsonic, Transonic, and Supersonic Compressible
¡ESteady State and Transient flow phenomena

Turbulence Models
¡Ek-epsilon
¡ERNG
¡EConstant eddy-viscosity
¡ELow Reynolds Number
¡EMixing Length
¡EWall Functions in k-epsilon and RNG
¡ELaminar

Heat Transfer
¡EConjugate heat transfer (simultaneous conduction and convection)
¡EConduction
¡EConvection:

¢w Natural
¢w Mixed
¢w Forced

¡EInternal surface to surface radiation:

¢w Radiative exchange through transparent media
¢w Full reciprocity enforced
¢w Geometry symmetry supported
¢w Objects in motion

¡EAutomatic film coefficient calculation
¡EBoundary conditions:

¢w Temperature
¢w Convection
¢w Total and area-based heat flux
¢w Radiation
¢w Total and volumetric heat source

¡EJoule (electrical resistance) heating
¡ETemperature dependent heat generation
¡EThermostatically-controlled internal fan and blower materials
¡ETemperature dependent emissivity
¡EThin component heat loading or specific J-theta conductivity
¡ECompact Thermal Model for electronic component analysis
¡EForced Convection Automation
¡ESolar Loading model

Property Variations
¡EProperty database for common engineering fluids and solids in all units conventions
¡EUnlimited number of different properties in one analysis
¡EVariable fluid and solid properties
¡EMultiple fluid capability
¡EUser-modifiable fluid and solid property data bases
¡ESolidification-like properties
¡EProperty variations with user-selected independent variable
¡EUser-defined look-up tables for functional form of properties
¡ENon-Newtonian power law, Carreau, and Hershel Buckley non-Newtonian formulations

Additional Physical Models
¡ECartesian and axisymmetric coordinate systems
¡EMultiple Rotating Frame of reference
¡ESolid object motion:

¢w Linear
¢w Angular
¢w Combined linear/angular
¢w Sliding Vane
¢w Orbital
¢w Nutating
¢w Free (Unconstrained) with collision detection

¡ELinear and angular solid object motion
¡ETwo-phase flows (humid gas and steam/water mixtures)
¡EScalar Transport equation:

¢w Property variation with scalar concentration
¢w Simulate mixing of multiple fluids
¢w Modifiable diffusion coefficient

¡ESurface Parts:

¢w Solid Obstructions
¢w Thermal Contact Resistance
¢w Distributed Resistance regions

¡EDistributed Resistance and Porous Media elements
¡ESimulation of pressure loss elements by specifying a free area ratio
¡ESpecification of Pressure-Flow Rate loss curve
¡EInternal fans with fan/pump head-capacity curve
¡EInternal fan velocity profile specification
¡ECheck Valve condition
¡EFan/Pump head-capacity curve boundary condition
¡ECentrifugal blower model with head-capacity curve
¡EGeneral Cartesian and cylindrical distributed resistance
¡ECompact Thermal Model for electronic component simulation
¡EPrinted Circuit Board Characterizer
¡ESolar Loading model

Visualization Features
¡EShaded, transparent, and wireframe display modes
¡EUnits conversion of displayed results
¡EProbe on any part surface, curved or flat
¡EMultiple Particle traces:

¢w Manual seed point selection on cutting plane
¢w Rectangular grid seed point selection
¢w Circular grid seed point selection

¡EResidence time display for particle traces
¡EDeletion of individual particle traces
¡EMass-weighted particle traces with modifiable coefficient of restitution
¡EAnimation of particle traces
¡ECutting planes at any location
¡EVector, contour, and mesh display on cutting planes
¡EProbe at any location on a cutting plane
¡ECutting plane orientation set on Cartesian planes, user-input orientation, or based on any planar surface in the model
¡ECutting plane with model clipping capability
¡EMultiple cutting planes, each capable of displaying different results
¡ENon-planar cutting surfaces:

¢w MCAD surface as surface shape
¢w Morphing from MCAD source to target surfaces
¢w Growth and shape transition based source surface offset

¡ECutting edge display for two dimensional models
¡EXY plotting at any location
¡EXY Plotting (using points selected from cutting planes)
¡EXY Plotting and bulk output for transient time step results
¡EMulti-analysis XY plotting capability
¡EGraphical and quantitative output of XY plot data
¡EMultiple XY plot data sets
¡EInteractive Z-clip into model
¡ECrinkle cut view of internal mesh display
¡EInteractive center-of-rotation specification
¡EFully interactive vector spacing
¡EIso Surfaces display (should be before vector display on iso surfaces?
¡EVector display on iso surfaces
¡EMultiple iso surface sets
¡EIso surfaces colored by a quantity different than the iso quantity
¡EDisplay mode control for each part (including color and transparency level)
¡EAnimation of multiple results sets (steady state or transient)
¡EDesign Review Center: Automatic transfer of results entities and visualization attributes across multiple analyses
¡EAutomatic transfer of results entities and visualization set-up across multiple analyses
¡ESupport for multiple results entities
¡EMulti-analysis bulk results output
¡EInteractive feature tree listing results, parts, iso surfaces, and cutting planes
¡EDynamic Image output with support of multiple results set and particle trace animation that can be used in Internet Explorer, Word, or PowerPoint
¡EComplete record of all analysis set-up parameters in results mode
¡EInstant results viewing of any saved results set/time step
¡EAutomatic analysis or project report creation based on standard or company-specific templates
¡EInteractive bulk data on any plane
¡EBulk data on multiple regions
¡EInteractive wall force, convection, and heat flux results on user-selected walls
¡EAutomatic Component Thermal Summary
¡ECutting plane output table
¡EAutomatic transient hydraulic torque table for rotating components
¡EAutomatic transient force, angular displacement, velocity, and torque tables for moving components
¡EVolume and surface blanking
¡EPart mirroring
¡EZoom to File function:

Other Unique Features of CFdesign:

¡EMathematical Formulation:

¢w Finite element formulation

¡EIntelligent Algorithms:

¢w Automatic Turbulent Startup Algorithm
¢w Boundary Mesh Enhancement
¢w Boundary Mesh Adaptation
¢w Automatic Wall specification
¢w Automatic results interpolation to new mesh
¢w Intelligent Solution Control
¢w Automatic Convergence Assessment

¡ERemote analysis solution
¡ERun-Time Results visualization
¡EInteractive Graphical Convergence Assessment
¡EPoint convergence monitoring at any location in the model
¡EFull restart capability with on-the-fly results interpolation to new mesh
¡EResults conversion to FEA loads for use with ABAQUS, ANSYS, Mechanica, and Nastran
¡EAccepts mesh data files in Ideas Universal and Nastran formats
¡EMesh data output in Ideas Universal format
¡EClient-Server architecture between interface and solver
¡EFast Track: Remote solution over networked computers
¡EDesign Review Server: remote processing of results visualization for display on local machine
¡EAutomatic analysis batch processing

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