HyperWorks 12.0 Release Notes

• Simplified Specification of Turbulence Quantities at Inlets
AcuConsole now supports simplified methods of specifying turbulence model variables at inlet
boundaries. When utilizing the Spalart-Allmaras, SST, k-Omega, DES, and SST-DES models, it
is necessary to prescribe a suitable level of turbulence intensity at the inflow. When users select
inflow types of flow_rate, mass_flux, and average_velocity, these quantities are computed
automatically based on an estimated Reynolds Number and distance to the nearest wall. However,
when users select pressure, stagnation_pressure and velocity type inflow conditions, it is
necessary to specify the appropriate values of eddy viscosity, kinetic energy, and eddy frequency.
Options have been added to the inflow boundary condition panel that allow users to select
between Intensity and Length Scale or Viscosity Ratio specification for one-equation models, and
Intensity and Length Scale or Intensity and Viscosity Ratio for two-equation models. Based on
the prescription of these quantities, the appropriate turbulence model variables are computed and
applied.
Input options for one-equation models Input options for two-equation models
• Utility for Mapping Results Between Meshes
Users now have the ability to map results between similar and dissimilar meshes within
AcuConsole. This functionality is primarily used for generating initial conditions for simulations.
Users can map results from coarse meshes onto fine meshes (or vice versa), or map between
similar designs to provide a more suitable initial guess for the solution values. Providing more
suitable initial conditions often yields faster convergence of the solver for steady state simulations,
and more realistic results at the initial time steps of transient cases. The mapped initial conditions
can be visualized on the boundaries of the model using the basic visualization capabilities that are
provided in AcuConsole with this utility. This option can be accessed from the Tools > Project
Solution menu, or from the main toolbar in AcuConsole.
Solutions mapping utility