Wszystkie pola: The Waves - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Modeling of the acoustic waves propagation in non-homogeneous medium
Autorzy:: Baranowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/332534.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: acoustic waves
numerical investigations
KZK equation
Opis:: 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 on-axis pressure and power spectrum density were analysed both in homogeneous and non-homogeneous medium
Źródło:: Hydroacoustics; 2009, 12; 1-8
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Numerical investigations of the nonlinear waves generation in a bubble layer
Autorzy:: Baranowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/332403.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: The purpose of the paper was to conduct numerical investigations of the nonlinear wave generation in a layer with uniformly distributed mono-size spherical bubbles. The mathematical model and examples of results of theoretical studies of this problem are presented. The mathematical model of the pressure propagation in the bubbly liquid layer is constructed using the linear non-dissipative wave and the Rayleigh-Plesset equations. The Commander and Prosperetti model is employed to compute the phase sound speed in the bubble layer. The spectra of transmitted and reflected waves are studied and the amplitudes of selected frequency harmonics of these waves examined.
Źródło:: Hydroacoustics; 2012, 15; 7-12
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Modelling of the finite amplitude waves interaction problem inside truncated cone
Autorzy:: Baranowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/332087.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: amplitude waves
truncated cone
Opis:: The paper presents the results of theoretical investigations of the finite amplitude waves interaction in water. The mathematical model and some results of numerical investigations are presented. The acoustic pressure amplitude changes for different frequency waves (especially difference frequency wave) along the sound beam were investigated. The mathematical model was built on the basis of the KZK equation. It was assumed that a circular piston was the source of two different frequency finite amplitude waves. The problem was considered as an axial symmetric one. The solution of the problem was looked for inside a truncated cone. To solve the problem the finite-difference method was applied.
Źródło:: Hydroacoustics; 2003, 6; 131-136
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Theoretical analysis of the finite amplitude waves interactionproblem for two types of piston
Autorzy:: Baranowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/331806.pdf
Data publikacji:: 2002
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: The aim of the paper was the numerical investigations of the finite amplitude waves interaction in water. The problem was considered as an axial symmetric one. It was assumed that circular piston and ring-shaped piston were the source of two different frequency finite amplitude waves. The mathematical model was built on the basis of the Khokhlov - Zabolotskaya - Kuznetsov (KZK) equation. To solve the problem the finite-difference method was applied. The mathematical model and some results of numerical investigations are presented. The spectrum of the wave for fixed distances from the source, the pressure amplitude changes for different frequency waves as a function of distance from the source and pressure amplitude distribution for fixed distances from the piston were investigated.
Źródło:: Hydroacoustics; 2002, 5; 1-8
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

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