Noise propagation from sustainable vehicle concepts (NoViCe)
Nicolas Pignier, Ciarán O'Reilly and Susann Boij
Traffic noise is one of the main sources of pollution, having harmful effects on health and impacting the economy. In order to design future sustainable transport systems, developing quieter ground vehicles is a necessity and manufacturers are pushed to develop new technologies through increasingly stricter regulations. In this project, a numerical method is developed to predict the aerodynamic sound generated by moving vehicles and its radiation in urban environment, so as to estimate its pass-by characteristics. Steps in the project include computation of the airflow around a vehicle geometry using detached eddy simulations; identification and modelling of the sound sources generated by the airflow using phased array techniques; and propagation of moving sources including reflections on large idealized buildings. This project is part of the ECO2 Centre for Vehicle Design, a VinnExcellence Centre performing multi-vehicular multidisciplinary research to support a sustainable vehicle design development.
 N. Pignier, C. J. O'Reilly and S. Boij. "Identifying equivalent sound sources from aeroacoustic simulations using a numerical phased array," Journal of Sound and Vibration, vol. 394C, pp. 203-219, 2017.
 N. Pignier, C. J. O'Reilly and S. Boij. "Predicting the pass-by signature of vehicle sound sources including the influence of nearby built environment," Proceedings of Meetings on Acoustics, article id 030010, vol. 30, no. 1, pp. 1-11, 2017.
 N. Pignier, C. J. O'Reilly and S. Boij. "Pass-by noise signature of aerodynamic sound sources in urban environment: A numerical approach," 23rd AIAA/CEAS Aeroacoustics Conference, American Institute of Aeronautics and Astronautics, 2017.
 H. Bouchouireb, N. Pignier, C. J. O'Reilly, S. Boij and J. A. Dahan. "Identification of noise sources on a realistic landing gear using numerical phased array methods applied to computational data," 23rd AIAA/CEAS Aeroacoustics Conference, American Institute of Aeronautics and Astronautics, 2017.
 N. Pignier. "Predicting the sound field from aeroacoustic sources on moving vehicles: Towards an improved urban environment," Doctoral thesis, KTH Royal Institute of Technology, 2017.
 N. Pignier, C. O'Reilly and S. Boij. "Aerodynamic and aeroacoustic analyses of a submerged air inlet in a low-Mach-number flow," Computers & Fluids, vol. 133, pp. 15-31, 2016.
 N. Pignier, C. J. O'Reilly and S. Boij. "Aeroacoustic study of a submerged air inlet using an IDDES/FW-H approach and sound source modelling through direct numerical beamforming," 22nd AIAA/CEAS Aeroacoustics Conference, American Institute of Aeronautics and Astronautics, 2016.
 N. J. Pignier, C. J. O'Reilly and S. Boij. "A Kirchhoff approximation-based numerical method to compute multiple acoustic scattering of a moving source," Applied Acoustics, vol. 96, pp. 108-117, 2015.
 N. Pignier, J. Dahan, C. O'Reilly and S. Boij. "Aeroacoustic analysis of a NACA duct," 10th European Congress and Exposition on Noise Control Engineering, Euronoise, 2015.
 N. Pignier. "Sound propagation from sustainable ground vehicles: from aeroacoustic sources to urban noise," Licentiate thesis, KTH Royal Institute of Technology, 2015.
 N. Pignier. "The impact of traffic noise on economy and environment: a short literature study: Performed within the scope of the ECO2 project Noise propagation from sustainable ground vehicles," Report, KTH Royal Institute of Technology, 2015.
 N. Pignier, C. O'Reilly and S. Boij. "Une Méthode Numérique pour Calculer la Diffusion Acoustique d’une Source Mobile par Plusieurs Objets," 12e Congrès Français d'Acoustique, 2014.