|START||NEW VOL 20||SEARCH||STATISTICS||PAS - GDANSK DIVISION|
pp. 1-8, vol. 12, 2009
Gdansk University of Technology, Department of Mathematical and Numerical Analysis, Gdansk, Poland
Key words: mathematical model; power spectrum density; Khokhlov-Zabolotskaya-Kuznetsov; KZK equation
Abstract: The aim of the paper is theoretical analysis of acoustic waves propagation in medium which are not homogeneous. The paper presents mathematical model and some results of numerical investigations. The mathematical model was built on the basis of the KZK equation. To solve the problem numerically the finite-difference method was applied. The onaxis pressure and power spectrum density were analysed both in homogeneous and nonhomogeneous medium.
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