20.1. Domain Types for 2D Multi Material Euler Solver

The 2D Multi Material Euler (MME) solver from the Ansys Autodyn solver has been exposed in the Mechanical interface. Two domain types can be created:

  • A wedge for performing 1D blast analyses

  • A grid (box) for performing 2D MME analyses

The domain type is determined by the Euler Domain Controls in the analysis settings.

If the Domain Type is set to Wedge, the virtual MME domain created is a 1D wedge. For how to set up a 1D wedge analysis, see Guidance on Setting up a 1D Wedge Analysis in Mechanical.

If the Domain Type is set to Grid, the default virtual MME behaviour is activated: the virtual MME domain created is a box and the controls work the same as for 3D virtual Euler MME domains with full Euler-Lagrange coupling turned on in the Explicit Dynamics solver.

The option to output data files containing the information needed to remap the results from a 2D axisymmetric MME domain into a subsequent analysis has been added to the Output Controls. The option is Output Remap File and can be set to Off, On or Program Controlled. If set to Off, no data files will be produced. If set to On, data files will be produced containing the data from any 2D MME domains, at the same frequency as the results files. If set to Program Controlled, the data files will be produced if there is a virtual MME domain of type Wedge, but will not be produced if there is no virtual MME domain or if there is a virtual domain of type Grid.

The file name of the data files is of the form remap_{cycle}.fil, where {cycle} is the cycle number at which the data file was produced. The data files can be used to initialize an 3D MME analysis in Mechanical using the provided ACT extension (see Using the Euler Remap ACT Extension). They are also of the correct file format to be used to fill Multi Material Euler and Euler Ideal Gas parts in the Autodyn Component System.