In-cylinder solution

  • Support of parts that are not morphed
    • Significantly reduce turnaround time thanks to domain parts excluded from the moving grid
      • Enables coupling of parts, which will be meshed static, not participating in the morph & map operation
      • Targets use cases for which motion is not involved, e.g. intake plenums, pre-chamber, fuel injectors
      • Makes use of separate mesh operations allowing for coarser meshing where resolution is not needed
    • Improved ease of use by streamlining an error-prone procedure
      • Simplifies specification of initial and boundary conditions for the static parts
      • 70% fewer clicks compared to the equivalent manual workflow
  • Turbulent flame quenching for ECFM
    • Accurately model Turbulent Jet Ignition (TJI) with the ability to account for turbulent flame quenching in broken reaction zones
      • New expert property Turbulent Quenching available with ECFM combustion model
      • Possibility to choose Internal method where quenching is controlled by Reaction Zone Thickness Multiplier or User Defined Turbulence Flame Quenching for more detailed implementation e.g. Using Field Functions
  • Introduction of mixed precision version check
    • Reduced opportunity for errors in simulation pipeline thanks to a new version usage check
      • Ensures that the double-precision version of the executables is used, essential for In-Cylinder Solution
      • Displays appropriate warning in pop-up window and simulation log
      • Avoids errors and divergences during the simulations
      • Does not check files saved with mixed-precision versions, at least once
  • Cone Angle Sampling Polynomial Exponent in In-Cylinder injection panel
    • Increased productivity thanks to model parameter available in the In-Cylinder user interface
      • Allows for customization of the spray plume generated by solid cone and hollow cone injectors
      • The exponent specifies the underlying polynomial used in the sample density of parcels
      • No longer required to resort to the main simulation tree to modify the underlying parameter
      • Increased value lead to spray plumes with distribution biased towards the centerline of the injector nozzles, while unity denotes a uniform distribution
  • Support of non-zero oxygen in initialization of Exhaust Gas Recirculation
    • Greater fidelity via an improved specification of species composition with Specified Burn Rate model
      • Addresses the limitation of the model with regard to a zero oxygen requirement in Exhaust Gas Recirculation
      • Enables automatic specification for all species of Specified Burn Rate eliminating the need for manual adjustments
      • Ensures consistency across operating points and mixture characterization
  • Introduction of second axis in histogram plots of mass fraction burned and combustion duration
    • Accelerate review of post-processing results thanks to an improved histogram plot
      • Complements the mass fraction burnt and combustion duration work, delivered in 2402
      • Plots the 10-90% combustion duration bars on a separate right Y-axis
      • Adopts a better range for the values of the left Y-axis, improving readability by amplifying differences between the bars reflecting mass fraction burned