Hybrid Aeroacoustic Computations: State of Art and New Achievements

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This paper collects the state of the art and the tremendous progress that has been made in hybrid modeling of aeroacoustic sound. Hybrid modeling is defined such that flow and acoustics are modeled separate and connected by an aeroacoustic model. The contributions will be classified with respect to the aeroacoustic models being developed, covering Lighthill’s analogy, Ffowcs Williams and Hawkings, vortex sound, linearized Euler equations (LEE), and different perturbation equations modeling flow induced sound. Within each topic, specific applications, such as jet noise, aircraft noise, ground mobility, noise, fan noise and human phonation, are covered. We focus on the accomplishments and provide the authors’ contribution to aeroacoustic research. Eventually, a concise summary of the different methods and their capabilities is included.
Original languageEnglish
Article number1950020
JournalJournal of Theoretical and Computational Acoustics
Issue number4
Publication statusPublished - Dec 2019


  • Aeroacoustics
  • acoustic analogy
  • hybrid CAA


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