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Up and Ready
2013
Preparing for Installation of Autodesk Simulation CFD Products
Configuring and Installing Autodesk Simulation CFD Products
Manually Configure the Revit CAD-Connection deployed from Building Design Suite
Simulation CFD Product Key Information
Switch from Stand-Alone (Trial License) to Network
Changing License Server Procedure for Autodesk Simulation CFD Products
2012
Computer Information
General Troubleshooting
Geometry Tools
Failure to launch from Pro/Engineer
Geometry Tool Error—A New Surface Could not be Created
Geometry Tool Warning—An Insufficient Number of Surfaces were Defined to Yield Additional Parts
Geometry Tools Error—Small Object Removal Failed as Specified Tolerance
Materials
Boundary Conditions and Initial Conditions
Negative Operating Point on an External Fan Boundary Condition
Temperature Initial Conditions Appear to be Missing from a Compressible Simulation
Meshing
Guidelines—Flag entries for additional mesh control
Analysis Types that cannot be Continued from a Saved Iteration after a Re-Mesh
Automatic Sizing Unavailable for a Sphere
Natural Convection with Mesh Adaptation
Alternative Meshing Strategy when Transferring Results to FEA
Error & Warning Messages
General Error/Mesh Failure on an Invalid Model
General Error/Mesh Failure on an Invalid Model
Insufficient Memory for Mesh Generation
Mesh Size Approaching that Prescribed for Small Object Suppression
Model or Geometric Query Failure
Surface Meshing Failure; Volume Meshing Failure
Unspecified Core Library Error
Lock-up during Automatic Mesh Sizing
Check Model Edge Diagnostics prior to Autosizing
Check model surface diagnostics
Motion and Rotating Regions
Particle Traces pass through the solid Impeller
Static Parts rotate with the Impeller
Flow Volume Appears to be Lost
Flow-Driven Motion of small objects may be subject to instability
Total Torque appears to lag behind Hydraulic Torque in an Angular Motion Simulation
Turbulence Quantities appear to ‘dip’ during Motion Analyses
Physics
Solving and Post Processing
Analysis is Incorrectly Queued
Countdown in Status Bar—is the Simulation Hung?
Extrusion meshed resistance region defined with Pressure-Flow rate curve fails to run
Heat Transfer: Energy Imbalance with a Centrifugal Blower
Heat Transfer: Stability issues for natural convection
Heat Transfer: Time step size sensitivity of transient heat transfer results with extruded elements
Heat Transfer: Transient heat transfer converges to a different temperature field than steady-state
Heat Transfer: Troubleshooting Energy Balance Issues for Heat Transfer Simulations
Log and Output Files for Troubleshooting
No Temperature Gradient across a Contact Resistance Material
Reducing localized velocity flow instability
Resolving unexpected flow near distributed resistance regions
Scenarios Falsely Listed in the Queue Prevent others from Running
TEC Devices—Device Switched Off
TEC Devices—Troubleshooting TEC Simulations for Unrealistically High Temperatures
Turbulence terms change during thermal-only stage of de-coupled simulation
Velocity boundary condition values “leak” across the edge of an Inlet Splitter
Divergence
Known Issues
Error Messages
The combined length of the file and path names is too long
A Compact Thermal Model (CTM) is Improperly Positioned
A Hole in the View Space has been Detected
A Part Touching a CTM is Suppressed
Analysis has stopped because the Solver has exited Unexpectedly
Analysis Model could not be loaded owing to Interfering Parts
Cannot open results file for write access
Compact Thermal Model cannot be a Moving Part
Conjugate heat transfer solids must be meshed with more than one element
Connection and Communication Errors
Did not Receive Reply From Remote Host
Dissimilar Contacting Fluids Detected
Electric Current Calculations Require Triangular Shells
Error reading Property Section of Control File
Errors when launching from Pro/Engineer or CATIA v5
Failed to detect image file format
Flux Based Advection Limitations
Found +r and –r coordinates in an axisymmetric model
Found Electrical Regions with no Electrical Boundary Conditions
Geometry Position for use as Axisymmetric
Heat Transfer = Off – no or insufficient Temperature Boundary Condition
Humid Properties are Physically Unrealistic
Incorrect Emissivity and/or Transmissivity Values
Maximum available memory may have been exceeded
Model Contains Disconnected Regions
Model does not Product an Integer Symmetric Pattern
No material has an emissivity greater than 0
Not enough memory to run the radiation model
Ran out of memory Processing Extrusion
The server (CFdserv) failed to respond or was unable to start the Solver