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A Simple Calculation Approach for the Second-Harmonic Sound Beam Generated by an Arbitrary Distribution Source |
| DING De-Sheng;ZHANG Yu |
| Department of Electronic Engineering, Southeast University, Nanjing 210096 |
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| Cite this article: |
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DING De-Sheng, ZHANG Yu 2004 Chin. Phys. Lett. 21 503-506 |
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Abstract We present a simple calculation approach for the fundamental and second-harmonic sound beams with an arbitrary distribution source in the quasilinear approximation. The analysis is based on the assumption that the source function with an arbitrary geometry and distribution is expanded into the sum of a set of two-dimensional Gaussian functions. The two- and five-dimensional integral solutions for the fundamental and second-harmonic fields are, respectively, reduced in terms of Gaussian functions and simple one-dimensional integrals. The numerical evaluation of field distributions is then greatly simplified.
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43.25.Cb
43.25.Jh
43.25.Lj
43.25.Vt
42.25.Ed
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Published: 01 March 2004
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| PACS: |
43.25.Cb
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(Macrosonic propagation, finite amplitude sound; shock waves)
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43.25.Jh
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(Reflection, refraction, interference, scattering, and diffraction of intense sound waves)
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43.25.Lj
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(Parametric arrays, interaction of sound with sound, virtual sources)
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43.25.Vt
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(Intense sound sources)
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42.25.Ed
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