The proposed SBIR project and its successful completion would result in a strong predictive aeroacoustics toolbox for licensing to clients in electronic cooling (such as Valeo and Siemens), automotive, and transportation industry (such as Alstom Transportation) in addition to the aviation industry as a whole. It would also enable us to pursue consulting projects on a much larger scale. We envision that as part of this project, a complete tool box will be developed which includes but is not limited to: high fidelity compressible, and incompressible LES simulations for direct calculations of noise and boundary element methodology for far field noise calculations. This toolbox will all be packaged into one appropriate design tool to be used by design engineers.
The proposed hybrid LES/RANS framework is aimed to be a high fidelity simulation toolbox for physics-based aircraft noise prediction. Application of this tool will improve the understanding of noise generation and propagation mechanism in both component and system level. Such understanding is a vital step for discovering novel noise reduction concepts. Accordingly, the function of the final product aligns well with the objective of NASA's Quiet Aircraft Technology (QAT) program through both Airframe System Noise Reduction (ASNR) and Engine System Noise Reduction (ESNR). In addition, the absence of problem dependent tuning parameters and generality of this framework allows for application of this toolbox to "conventional" as well as "revolutionary" aircraft configurations.