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- Title
Normal Mode Analysis of the Nonlinear Acoustic Wave Equation.
- Authors
OTHMAN, Mohamed Ibrahim Ahmed; ALI, Mohamed Galal Sayed; FAROUK, Roushdi Mohamed
- Abstract
Second-harmonic generation in non-linear media is investigated. A normal mode analysis is proposed based on the Westervelt equation under the second-order approximation in nonlinear acoustics. This model takes into consideration attenuation, diffraction and nonlinear effects, together with dispersion. The fundamental and second harmonic is examined. The derived method is evaluated by 2-D analytical formulas which apply to tissue medium.
- Subjects
NONLINEAR wave equations; SECOND harmonic generation; NONLINEAR acoustics; APPROXIMATION theory; DISPERSION (Chemistry)
- Publication
Walailak Journal of Science & Technology, 2014, Vol 11, Issue 4, p341
- ISSN
1686-3933
- Publication type
Article