Theoretical Analysis of the Finite Amplitude Waves Interaction Problem
Abstract:The aim of the paper is the theoretical analysis of the finite amplitude waves interaction in water. The mathematical model and some results of numerical investigations are presented. The mathematical model was built on the basis of the Khokhlov - Zabolotskaya - Kuznetsov (KZK) equation. It was assumed that ring-shaped piston was the source of two different frequency finite amplitude waves. Due to this assumption the problem was considered as an axial symmetric one. To solve the problem the finite-difference method was applied. The waveform and spectrum of the wave for fixed distances from the source, the pressure amplitude changes for different harmonic components as a function of distance from the source were investigated. Especially normalised pressure amplitudes for difference frequency wave as a function of distance from the source was considered.
Document Type: Research Article
Publication date: 2002-09-01
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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