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Validation Case Studies

New Releases

New Features:
  • Unsteady Solver Enhancements

    • Periodic symmetry for unsteady axisymmetric simulations (hover, cruise props)
    • Higher accuracy flow field from unsteady wakes
    • Enhancements to the unsteady loads and moments computation
    • New: unsteady custom and user-defined time plots for forces and moments
    • New: unsteady probe point volumetric flow condition plots
    • New: unsteady solver animation export features
    • New: 6DOF integration for full-vehicle simulations
    • Enhancements for modeling hovering/low-advance-ratio props and rotors
  • New Viscous-Coupled Solver

    • New: Direct boundary-layer viscous-coupled solutions for steady, rotary and unsteady solver modes!
    • New: Pre, at- and post-separation boundary layer modeling
    • New: Stall prediction using viscous coupling
    • The boundary layer drag model using momentum integral methods has been fully implemented now and generates much cleaner and better results for CD0 from FlightStream
    • Compressibility modeling in the boundary layer has also been improved for better stall predictions at higher Mach numbers
  • Post-Processing Enhancements

    • New: Axisymmetric surface pressure plots
    • Enhanced volume section BL visualization tools
    • New: Integrated surface pressure sectional load distributions
    • New: Boundary layer data on surface streamlines
    • New: Integrated viscous velocity map contours for boundary layer ingestion flows
    • New: live plot data point query tools: extract data live from plots by clicking on them
    • New: solver sweeper result matrix plotting
  • New Toolboxes

    • New: aeroacoustics toolbox!
    • New: Reduced Order Aerodynamics Toolbox for flight-simulation aero databases
  • Geometry Pre-Processing Enhancements

    • New: Circular copy/paste pattern operations for propeller/rotor modeling
    • New: Number of copies in copy/paste
    • Wavefront OBJ file format supports full quad meshes
    • Enhancements to the boolean unite mesh quality
    • Merge mirrored components
    • Improved tools in threshold-based selection panel
    • Improved Abaqus INP file format (minor bug fixes)
  • CAD Improvements

    • New: CAD Create–>Auto cross section capability for generating CAD from STL files
    • New: CAD Create–>Mean camber surface CAD creation
    • New: Export CAD drawing curves to CCS format
    • Enhanced CCS import file format features
    • Enhanced UI for CAD repair operations
    • Improved robustness of IGES file import (several bug fixes)
  • UI Enhancements

    • New: Light/Dark mode UI options
    • New: graphical and plot control tools
    • New: contour colormap UI options
    • Enhanced scripting API for all new features described above
    • Several UI crash bugs were fixed
New Features:
  • New Geometry Import

  • New Geometry Operation

  • IGES CAD Import Options

  • CAD Import: Custom Cross-Section (CCS) File Format

  • Solver: Unsteady Wakes

  • New Motion Definitions

  • Turbulent Trips: Artificial Boundary Layer Transition Lines

  • Base Flows: Modeling Of Blunt Trailing Edges

  • Periodic Symmetry: Multi-Blade Propellers In Steady Rotary Flow

  • Boundary Layer: Surface Roughness Model

  • Enable/Disable Solver Boundaries In Analysis

  • Volume Sections: Near-Wall Prism Layer Cells

  • Volume Sections: Circular & Annular Sections

  • Probe Points: Surface/Volume Types

  • Surface Sections: Boundary Selection & Automatic Sorting

  • MSC Nastran File Format Export: Pload BDF Files

  • Enhanced User Interface, Ease-Of-Use Features

  • FlightStream Scripting

Download 2020.2 Release Notes
New Features:
  • Fast Multipole Method (FMM)

  • New Field Parameters

  • New Viscous Drag Mode: Boundary Layer Momentum Integral

  • New Coordinate Systems Rotation Tool

  • New File Export Option: Force Distributions Export File

  • Substantial Speedup Enhancements

  • Copy/Paste Spreadsheet Data

  • Enhanced Meshing Quality

  • Enhanced Mesh Hole Filling

  • Updated Scripting A.P.I.

  • Mesh Diagnostics On Non-Degenerate Faces Only

  • Miscellaneous Bug Fixes

Download 2020.1 Release Notes
New Features:
  • Relaxed Kutta Separation Modeling

  • Boundary Layer Transition: Improved Viscous Forces Model

  • Advanced Aligned Mesher for Anisotropic Quad Meshes

  • Automated Pressure-Spike Cleanup

  • Steady-State Rotary Solver for Hover

  • Extended IGES Entities and CAD Solids Import

  • Extended CAD Create Intersection Tools

  • New Solver Sweeper Toolbox Export Options for FEA

  • Automated Mesh Quality Improvement Tool

  • Solver Field Parameter Threshold Selection Options

  • Expanded Selection Tools

  • Solver Color-map Range Cut-off Tools

  • Updated Scripting API

  • IGES CAD Planes Parameterization

  • IGES CAD Surface Duplication

  • Miscellaneous Bug Fixes

Download 11.4 Release Notes
New Features:
  • Enhanced unsteady solver capabilities
  • Improved rotor induced velocity models
  • Enhanced parallel processing
  • Compatibility refinement meshing tools
  • Structural finite element modeling pressure export
  • Abaqus input file geometry import
  • Plot3D CAD reconstruction import
  • CAD Create Tools:

    • Rotational surfaces between drawing curves
    • Transferring meshing curves to drawing curves
  • Mass-flow inlet boundaries
  • Inlet boundary meshing tools
  • Scripting-based solver sweep runs
  • Improved CAD orientation on import
  • Compressibility issues at very high subsonic Mach numbers
  • Simulation file saves on network drives
  • Miscellaneous bug fixes
Download 11.2 Release Notes
New Features:
  • Stall prediction, CLMAX and non-linear aerodynamics

  • Laminar/Turbulent boundary layer transition
  • Stability & Control Toolbox
  • Higher-order compressibility models
  • Improved moments computation
  • New freestream velocity distributions
  • Automated surface streamlines for viscous loads
  • New CAD Repair options
  • Updated scripting API
  • Improved CAD import robustness
  • Geometry face orientation issues
  • Improved robustness in CAD-based meshing
  • Miscellaneous bug fixes
Download 11.0 Release Notes