7.8.1 Requirements and Restrictions

Note the following requirements and restrictions for the WAVE coupling:

• WAVE needs to be installed and licensed.

• There are always five species that must be modeled in ANSYS FLUENT just as they are defined in WAVE ( F1, F2, F3, F4, and F5). It is recommended that realistic material properties be assigned to each of the five species.

• The flow must be unsteady.

• The compressible ideal gas law must be used for density.

• Each boundary zone for which you plan to define conditions using WAVE must be a flow boundary of one of the following types:
  • velocity inlet

  • mass flow inlet

  • pressure inlet

  • pressure outlet

  Also, a maximum of 20 boundary zones can be coupled to WAVE.

• If a mass flow inlet or pressure inlet is coupled to WAVE, you must select Normal to Boundary as the Direction Specification Method in the Mass-Flow Inlet or Pressure Inlet Dialog Boc. For a velocity inlet, you must select Magnitude, Normal to Boundary as the Velocity Specification Method in the Velocity Inlet Dialog Box.

• Boundary conditions for the following variables can be obtained from WAVE:
  • velocity

  • temperature

  • pressure

  • density

  • species mass fractions

  • $k$ and $\epsilon$ (Note that you are required to define these conditions in ANSYS FLUENT yourself, since WAVE does not calculate them.)

• Make sure that the material properties you set in ANSYS FLUENT are the same as those used in WAVE, so that the boundary conditions will be valid for your coupled simulation.

• If your model includes species, make sure that the name of each species in WAVE corresponds to the Chemical Formula for that species material in the Create/Edit Materials dialog Box. Also, recall that ANSYS FLUENT can handle a maximum of 50 species.