The following commands are commonly used in an acoustic analysis:
Table 2.2: Primary Acoustic Analysis Commands
| Command | Comments |
| APORT | Specifies parameters for the plane wave and acoustic duct port. |
| ASIFILE | Defines writing or reading the one-way acoustic-structural coupling data to or from a file. |
| ASOL | Specify an acoustic harmonic analysis with the scattered pressure formulation. |
| ASCRES | Output control for an acoustic scattering analysis. |
| AWAVE | Defines the analytic acoustic incident wave source. |
| DFSWAVE | Specifies the incident planar waves with random phases for a diffuse sound field. |
| ECPCHG | Optimizes degree-of-freedom usage in a coupled acoustic model. |
| FLUREAD | Reads one-way Fluent-to-Mechanical APDL coupling data via a .cgns file with one-side fast Fourier transformation complex pressure peak value. |
| HFANG | Defines spatial angles of a spherical radiation surface for an acoustic radiator. |
| HFSYM | Indicates the presence of symmetry planes for the computation of an acoustic field in the near- or far-field domains (beyond the finite element region). |
| MRPM | Defines the frequency of machine rotation in revolutions per minute. |
| MSOLVE | Starts multiple solutions for random acoustics analysis with diffuse sound field. |
| PLAS | Plots a specified acoustic quantity on the selected exterior surface, energy on the selected elements, or the frequency-band sound pressure level (SPL) on the nodes over a frequency range. |
| PLFAR | Plots acoustic far-field parameters. |
| PLNEAR | Plots the acoustic parameters in the near zone exterior to the equivalent source surface. |
| PMLOPT | Defines perfectly matched layers (PML) or irregular perfectly matched layers (IPML). |
| PMLSIZE | Determines the number of PML or IPML layers. |
| PRAS | Prints a specified acoustic quantity on the selected exterior surface, energy on the selected elements, or the frequency-band sound pressure level (SPL) on the nodes over a frequency range. |
| PRFAR | Prints acoustic far-field parameters. |
| PRNEAR | Prints the acoustic parameters in the near zone exterior to the equivalent source surface. |
| PSYS | Sets the PML element coordinate system attribute pointer. |
Table 2.3: Secondary Acoustic Analysis Commands
| Command | Comments |
| ANTYPE | Sets a flag indicating whether a subsequent linear perturbation will be performed. |
| BF | Defines the acoustic body loads. |
| CP | Couples nodes for the Floquet periodic boundary condition. |
| CPCYC | Couples nodes for the Floquet periodic boundary condition (cyclic symmetry). |
| *GET | Obtains acoustic parameters in post-processing. |
| HARFRQ | Defines the frequency range in the harmonic analysis, including the octave bands. |
| LDREAD | Reads mean flow results from the results file and applies them as loads. |
| MORPH | Specify the morphing operation in an acoustic linear perturbation. |
| NSOL | Prints the solution results for nodes. |
| PLESOL | Plots the acoustic solution results for elements. |
| PRESOL | Prints the acoustic solution results for elements. |
| PLNSOL | Plots the acoustic solution results for nodes. |
| PRNSOL | Prints the acoustic solution results for nodes. |
| SF | Defines the acoustic surface loads and flags. |
| TB | Defines the acoustic frequency-dependent materials, the equivalent model of perforated materials, and the viscous-thermal model. |
| /UNITS | Annotates the database with the system of units used for acoustic default values. |