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Wyszukujesz frazę "52.35.Py" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Stability of Deep Water Waves Governed by the Benjamin-Ono Equation
Autorzy:
Infeld, E.
Rowlands, G.
Powiązania:
https://bibliotekanauki.pl/articles/2035736.pdf
Data publikacji:
2003-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
47.20.Ky
52.35.Py
Opis:
The Benjamin-Ono equation models the dynamics of internal waves in stratified fluids of great depth. It includes an integral (Hilbert transform) term, and so stability calculations might seem difficult. We expand in both the amplitude of the nonlinear wave and the wave vector of the perturbation, assumed to be small quantities of the same order. An expression for the nonlinear dispersion relation is obtained. Nonlinear periodic Benjamin-Ono waves are stable, just as the localized, algebraic soliton solutions (Lorentzians), already known to be stable. (This also follows as a limit of our calculations.) We extend the known analogy between the Benjamin-Ono and modified Korteweg-de Vries equations.
Źródło:
Acta Physica Polonica A; 2003, 103, 4; 365-371
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Plasma Dynamics on Material Synthesis Product of IPD Process
Autorzy:
Rabiński, M.
Zdunek, K.
Powiązania:
https://bibliotekanauki.pl/articles/2011041.pdf
Data publikacji:
1999-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Tp
52.30.-q
52.35.Py
52.75.Rx
Opis:
In the present work we discuss recent studies concerning plasma dynamics influence on the material synthesis product of the impulse plasma deposition process. Conditions favourable for evaluation of the Rayleigh-Taylor instability on the current sheet surface were found during the computational studies of plasma movement in the coaxial accelerator. Appearance of this phenomenon explains non-uniform phase composition and morphology of coatings. By modifying the design of the plasma accelerator, we succeeded in reducing substantially Rayleigh-Taylor instability and in obtaining α-Al$\text{}_{2}$ O$\text{}_{3}$ coatings instead of common γ-Al$\text{}_{2}$O$\text{}_{3}$.
Źródło:
Acta Physica Polonica A; 1999, 96, 2; 319-324
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physical Phenomena in Z-pinch Plasma of Impulse Plasma Deposition Process
Autorzy:
Rabiński, M.
Zdunek, K.
Powiązania:
https://bibliotekanauki.pl/articles/2035475.pdf
Data publikacji:
2002-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Tp
52.30.-q
52.35.Py
52.77.Dq
Opis:
In the present paper we propose a model of physical phenomena behind the front face of the electrodes in an impulse plasma accelerator. The model is based on the results of recent experimental observations and measurements. It correlates plasma dynamics with mechanism of phenomena in a column of pinching plasma. On the contrary to the previous model the current one suggests the series of relatively short pulses of metallic ions from the erosion of electrode material. Till now the pinch was treated rather as a nearly continuous source of metallic plasma, feeding the process with ions from the erosion of electrode material.
Źródło:
Acta Physica Polonica A; 2002, 102, 2; 193-197
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Surface Tension and Rotation on Rayleigh-Taylor Instability of Two Superposed Fluids with Suspended Particles
Autorzy:
Sharma, P.
Prajapati, R.
Chhajlani, R.
Powiązania:
https://bibliotekanauki.pl/articles/1535630.pdf
Data publikacji:
2010-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
47.50.Gj
52.35.Py
47.20.Ib
06.30.Gv
47.10.-g
Opis:
The Rayleigh-Taylor instability of two superposed incompressible fluids of different densities in the presence of small rotation, surface tension and suspended dust particles is investigated. The linearized equations of the problem are constructed and the general dispersion relation is obtained using normal mode analysis by applying the appropriate boundary conditions. The effects of surface tension, the Atwood number, small rotation and suspended dust particles are studied on both conditions of Rayleigh-Taylor instability and growth rate of the unstable Rayleigh-Taylor mode. The numerical calculations have been performed to see the effect of rotation, the Atwood number, relaxation frequency and mass concentration of suspended dust particles. It is found that the growth rate of Rayleigh-Taylor instability depends upon the mass concentration and relaxation frequency of suspended dust particles. The uniform small rotation, relaxation frequency and mass concentration of suspended dust particles all have stabilizing influence on the growth rate of Rayleigh-Taylor instability. It is also found that the Atwood number has destabilizing influence on the growth rate of the considered Rayleigh-Taylor configuration.
Źródło:
Acta Physica Polonica A; 2010, 118, 4; 576-584
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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