- Acoustic sources retrieved from experiments or defined analytically.
- Noise propagation analysis in uniform and non-uniform mean flows.
- Sound absorption from porous/fibrous materials and perforated sheets.
- Impedance boundary condition to simulate acoustic liners.
- Iterative FEM (Finite Element Method) and BEM (Boundary Element Method) solvers, for propagation analysis,based on multi-frequency parallelization technology.
- FW-H (Ffowcs Williams-Hawkings) solver for radiation analysis, compatible with fixed/rotating, solid/porous radiation surfaces.
- Impedance Matrix method for the Transmission Loss analysis of mufflers and exhaust systems.
- Eigenvalues analysis for cavity modes detection.
- Efficient simulation of TONAL and BROADBAND noise sources thanks to the full integration with NUMECA’s CFD methods (used for noise source characterization).
- Possibility to exploit CFD solutions obtained with any CFD tool on the market (import of CGNS, Tecplot, FieldView file formats).
- Integration with the Nonlinear Harmonic (NLH) method for the simultaneous simulation of TONAL noise source and propagation including liners (ASME GT2014-26429 and ETC ETC2015-197 papers).
Orders of magnitude faster than with propagation approaches based on unsteady CFD solutions.
- FINE™/Acoustics includes the Flow-Noise method for the analysis of BROADBAND noise based on the reconstruction of synthetic turbulence from a steady RANS solution (SAE 2015-01-2329 paper).
- LES, DES, U-RANS solutions can be imported in FINE™/Acoustics and used to characterize the source region and to compute the sound propagation.
- Structure excitation based on acoustic sources, unsteady pressure fields and point forces applied to the vibrating structure.
- Fluid-structure coupling based on import of structural modes (from NASTRAN, ABAQUS, ANSYS).
- FEM-BEM solvers for fully coupled vibro-acoustic simulations.
- Mixed direct-indirect BEM approach to include thin shells in frequency response analysis.
- FEM cavity modes analysis including sound absorption and structure vibration.