The latest Caedium release has a broad range of new features, enhancements, and bug fixes. The new release includes an array of topology-based operations that support a new hybrid modeling scenario where you can build your flow volume from a mixture of faceted and analytic (CAD) geometry. Also there are a selection of new ways to run simulations, with two cloud-based services using Windows Azure and an experimental GPU option for NVIDIA hardware.

New Features and Enhancements

• Topology Operations
  • Connect faces, edges, and vertices [Builder] to create:
    • Non-manifold geometry for multi-block meshes
    • Zero-thickness (or double-sided) walls
  • Stitch edges and faces to create hybrid faceted and analytic geometry models [Builder]
  • Perform subtract and decompose Boolean operations with hybrid models - no longer limited to true geometry [Builder]
• Running Simulations
  • Outsource simulations to cloud-based services [RANS Flow]:
    • Cloud Burst: Windows HPC Server 2008 R2 SP2 'Burst to Azure'
    • Cloud: Windows Azure
  • Experiment with state-of-the-art GPU acceleration using CUDA on NVIDIA hardware [RANS Flow]
• Faceted Modeling
  • Import COLLADA faceted geometry from Google SketchUp [Exchange]
  • Extract feature edges from faceted models with a facet feature angle preference [Exchange]
  • Create hybrid faceted and true geometry models using new topology operations [Builder]
• Infrastructure
  • Perform more robust Boolean operations using OpenCascade 6.5.1 [Builder]
  • Realize shorter startup times and improved overall performance with OpenFOAM® 2.0.x, especially on Windows with new MinGW-w64 compiler improvements [RANS Flow]
  • See reduced simulation turnaround time with an optimized OpenFOAM mesh representation [RANS Flow]
• Miscellaneous
  • Use new selection filters to easily select geometry based on a wide range of constraints
  • Automate operations, such as export, during simulation updates using new telemetrics [RANS Flow|Transient]
  • Create detailed geometry, mesh, and physics reports using the new Info tool [Builder]

Bug Fixes

• Trying to create a force monitor on a non-simulation volume face caused Caedium to crash [RANS Flow|Panel Flow]
• Trying to extract results on a non-simulation volume caused Caedium to crash [RANS Flow|Panel Flow]
• Residual monitor properties included erroneous 'geometry' property after restore [RANS Flow|Panel Flow]
• Trying to display an existing Color Map (e.g., p) did not automatically switch the view to that Color Map [RANS Flow|Panel Flow]
• Scaling geometry by zero corrupted model [Builder]
• Poor error message when trying to use faceted geometry in a subtract Boolean operation [Builder]
• Errors and warnings about corrupt geometry during Boolean operations on simple shapes [Builder]
• Clipping slider properties did not respond to arrow or page-up/down keys
• Clipping range did not update after creating new geometry [Builder]
• Toggling Freeze sometimes caused internal errors [RANS Flow|Transient]
• Symmetry boundary condition visualization was not scaled by base units [RANS Flow|Panel Flow]
• Corrupt view if a camera was saved with the camera focal point at the camera position
• Temporary directory name clashes when running 100s of Caedium instances
• Camera shake during animation [RANS Flow|Transient]
• ABL Ustar calculation missing for epsilon [RANS Flow]
• AMG solver hit maximum iteration limit due to absolute tolerance being too small [RANS Flow]
• Erroneous blank camera upon restore after deleting a camera immediately prior to save on Linux
• Trying to drag and drop a window tab near an edge of the application caused Caedium to crash on Ubuntu 11.04
• Menu bar was invisible if desktop was switched from Ubuntu (default Unity) to Ubuntu Classic on Ubuntu 11.04
• Graphics driver memory leak on Mac OS X GeForce 9400. Workaround is to switch off hardware-accelerated displayed lists using new preference: File->Preferences, Visualization->Hardware Acceleration

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