Temat: method of stationary phase - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mathematical Modelling of Sound Radiation from a T Junction of City Roads in Windy Conditions
Autorzy:: Piddubniak, O.
Piddubniak, N.
Powiązania:: https://bibliotekanauki.pl/articles/176734.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: T junction of city roads
traffic noise propagation
stationary phase method
acoustic pressure
power flow density
Opis:: The sound radiation from vehicles travelling on the city roads with T junction was considered. The wind effect on acoustic field was taken into account. The solution of this problem was found with the help of the integral Fourier transforms and stationary phase method as the superposition of solutions for the cases of vehicles moving along the straight roads and roads with right-angle bend. As an example, the numerical analysis of traffic noise characteristics was carried out for the T junction city road on one of streets in the town of Łódź (Poland).
Źródło:: Archives of Acoustics; 2016, 41, 3; 543-558
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Generation of surface waves due to initial axisymmetric surface disturbance in water with a porous bottom
Autorzy:: Kundu, P.
Mandal, B. N.
Powiązania:: https://bibliotekanauki.pl/articles/265312.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: transformata Laplace'a
powierzchnia porowata
transformata Henkel'a
axisymmetric surface disturbance
porous bottom
Laplace and Hankel transform
method of stationary phase
free surface depression
Opis:: A two-dimensional Cauchy Poisson problem for water with a porous bottom generated by an axisymmetric initial surface disturbance is investigated here. The problem is formulated as an initial value problem for the velocity potential describing the motion in the fluid. The Laplace and Hankel transform techniques have been used in the mathematical analysis to obtain the form of the free surface in terms of a multiple infinite integral. This integral is then evaluated asymptotically by the method of stationary phase. The asymptotic form of the free surface is depicted graphically in a number of figures for different values of the porosity parameter and for different types of initial disturbances.
Źródło:: International Journal of Applied Mechanics and Engineering; 2019, 24, 3; 625-644
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

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