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3D Calculation with Compressible LES for Sound Vibration of Ocarina

By Taizo Kobayashi, Toshiya Takami, Masataka Miyamoto, Kin'ya Takahashi, Akira Nishida and Mutsumi Aoyagi


Sounding mechanism is numerically analyzed to elucidate physical processes in air-reed instruments. As an example, compressible large-eddy simulations (LES) are performed on both two and three dimensional ocarina. Since, among various acoustic instruments, ocarina is known as a combined system consisting of an edge-tone and a Helmholtz resonator, our analysis is mainly devoted to the resonant dynamics in the cavity. We focused on oscillation frequencies when we blow the instruments with various velocities.Comment: 8 pages, presented in Open Source CFD International Conference 200

Topics: Physics - Computational Physics, Physics - Fluid Dynamics
Year: 2009
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