VNoise provides a series of fully integrated tools that can be applied to a wide range of aeroacoustic simulations. All the tools are integrated in a common framework that permit to afford different simulation domains with a unified approach. Different kind of simulations can be performed following a unified simulation path, and adopting the most appropriate module at each step. The overall approach ensure a great flexibility and efficiency and makes possible for the first time to perform complex aero-acoustic calculations at an industrial level, not only at the analysis but also at the design stage.

The overall process can be subdivided in 4 independent steps:

• CFD Analysis:
  
• Acoustic Domains: Definition of acoustic meshes for the domains enclosing the different aeroacoustic sources and the propagation domain.
  
• Source Evaluation: Evaluation of the aeroacoustic sources for each source domain with the proper tool.
  
• Propagation:Assembling of all the sources in the overall propagation analysis.

Different tools can be used for each step in relation to the specific problem to be analysed.

CFD: Different tools can be used typically RANS or URANS but also LES/DES analyses can be accomodated if required. Virtually all commercial CFD software are supported with the proper interfaces.

Source Modeling:

• Flow Noise: Extract full spectrum of aeroacoustic sources from steady CFD RANS analyses
  
• FWH Solver: Noise radiation from rotating blades, FANS...
  

Propagation:

• BEM: Boundary element analysis for the convective helmholtz equation
  
• FEM: Finite Element analysis for propagation in both uniform and non uniform flows
  
  Both BEM and FEM can eventually include structural coupling for completly coupled aero-vibro-acoustic analyses