Autor: Vereshchagin, D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Speed of a sound in nonideal gas
Autorzy:: Vereshchagin, D.
Kaminskaya, A.
Powiązania:: https://bibliotekanauki.pl/articles/332027.pdf
Data publikacji:: 2002
Wydawca:: Polskie Towarzystwo Akustyczne
Opis:: The general formulas for the basic thermodynamic parameters are revisited (entropy, free energy and others) form point of view of the speed of a sound determining dependence on pressure and temperatures in nonideal environments. As an example a behaviour of speed of a sound is investigated as functions of temperature and pressure for Van der Waals gas. A comparison of the results of evaluation with the available experimental data is carried out. The analysis has shown, that received formulas describe the velocity of a sound in a wide range of pressures and temperatures.
Źródło:: Hydroacoustics; 2002, 5; 53-56
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Evaluation of nonlinear constants from results of acoustic measurements. Regularization of problem
Autorzy:: Leble, S. B.
Vereshchagin, D. A.
Vereshchagina, I. S.
Powiązania:: https://bibliotekanauki.pl/articles/332067.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: acoustic measurements
regularization
Opis:: The method of nonlinear constants B/A and C/A determination is discussed. It bases on comparison of experimental results of acoustic signal propagation with results of theoretical investigation of this problem. It is shown, that this problem, in general case, is ill-posed. So we use methods of ill-posed problem solution regularization. The values of the constants, which were extracted using this method, are in good accordance with estimations by other authors.
Źródło:: Hydroacoustics; 2003, 6; 159-166
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja