Abstract
This paper aims at predicting the noise generated by flows interacting with airframe elements using unstructured LES coupled with a FW-H technique. The rod-airfoil canonical geometry 5 has been selected as a benchmark representative of such phenomena. The detailed experimental database 5 and several numerical simulations 3,6–11 available enable an extensive validation of the proposed methodology. Similar or improved results are obtained both in the near-field (velocity profiles) and in the acoustic far-field (power spectral densities obtained with both porous and solid surfaces) compared with the best, most recent simulations. The impact of two important numerical parameters is also assessed : the spanwise dimension of the computational domain, and the sensitivity of the rod/airfoil alignment. The former improves the low frequency content of the simulated acoustic pressure, the latter only the simulated near-field in the cylinder wake. Finally best practices are drawn from this test case for future airframe industrial configurations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
