منابع مشابه
PML Methods for Aero Acoustics Computations
Two well-posed non-reflecting boundary conditions of PML type for the linearized Euler equations are examined and compared. The efficiency of these boundary conditions are evaluated for circular waves as well as plane waves with different angles of incidence, and the results are compared with characteristic boundary conditions as a reference. PML Metoder för Aeroakustiska Beräkninger Sammanfatt...
متن کاملSession 5pMU Musical Acoustics and Structural Acoustics and Vibration: Computational Methods in Musical Acoustics II
Real-time auralization of physical models has attracted vivid interest over the last years. This is mainly due to the rising computational capabilities of personal computers and the accessibility of specialized (external) accelerating hardware, like GPGPUs (generalpurpose graphics processing units) or FPGAs (field programmable gate arrays). In this work, an extended framework of real-time physi...
متن کاملUsing Musical Acoustics
The physical modeling of complex sound generators can only be approached by individually synthesizing and discretizing the objects that contribute to the generation of sounds. This raises the problem of how to correctly implement the interaction between these objects. In this article we show how to construct an object-based environment for sound generation, whose objects can be individually syn...
متن کاملClarinet Acoustics: Introducing a Compendium of Impedance and Sound Spectra
The acoustic behaviour of wind instruments is largely determined by their acoustic impedance spectrum measured at the embouchure or 'input' to the instrument. The acoustic impedance Z is the ratio of acoustic pressure p U and its extrema identify the frequencies of resonances and antiresonances due to standing waves in the bore. (For example see [1].) Backus [2] reports measurements of the acou...
متن کاملAero-Acoustics of Drag Generating Swirling Exhaust Flows
Aircraft on approach in high-drag and high-lift configuration create unsteady flow structures which inherently generate noise. For devices such as flaps, spoilers and the undercarriage there is a strong correlation between overall noise and drag such that, in the quest for quieter aircraft, one challenge is to generate drag at low noise levels. This paper presents a rigorous aero-acoustic asses...
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ژورنال
عنوان ژورنال: Le Journal de Physique IV
سال: 1994
ISSN: 1155-4339
DOI: 10.1051/jp4:19945120