Temat: acoustic streaming - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Acoustic streaming in focal and post focal region
Autorzy:: Grelowska, G.
Kozaczka, E.
Powiązania:: https://bibliotekanauki.pl/articles/332394.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: acoustic streaming
focal area
Opis:: The paper presents concise theoretical description of mechanism of acoustic streaming in the field of finite amplitude wave. Special attention was concentrated on acoustic streaming in focal area into a beam produced by a bowl shaped source. A set up used in experimental investigation is also shown. The measurement was carried out at fixed conditions. Its result was compared to the result of calculation based on theory derived from the reasoning presented by W. Nyborg et al.
Źródło:: Hydroacoustics; 2003, 6; 125-130
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Repetitive Acoustic Streaming Patterns in Sinusoidal Shaped Microchannels
Autorzy:: Jannesar, Elnaz Attar
Hamzehpour, Hossein
Powiązania:: https://bibliotekanauki.pl/articles/177380.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: acoustic streaming
sinusoidal boundaries
microscale vortices
sub-microparticle trapping
Opis:: Geometry of the fluid container plays a key role in the shape of acoustic streaming patterns. Inadvertent vortices can be troublesome in some cases, but if treated properly, the problem turns into a very useful parameter in acoustic tweezing or micromixing applications. In this paper, the effects of sinusoidal boundaries of a microchannel on acoustic streaming patterns are studied. The results show that while top and bottom sinusoidal walls are vertically actuated at the resonance frequency of basic hypothetical rectangular microchannel, some repetitive acoustic streaming patterns are recognised in classifiable cases. Such patterns can never be produced in the rectangular geometry with flat boundaries. Relations between geometrical parameters and emerging acoustic streaming patterns lead us to propose formulas in order to predict more cases. Such results and formulations were not trivial at a glance.
Źródło:: Archives of Acoustics; 2020, 45, 1; 35-48
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: On the Nonlinear Distortions of Sound and its Coupling with Other Modes in a Gaseous Plasma with Finite Electric Conductivity in a Magnetic Field
Autorzy:: Perelomova, A.
Powiązania:: https://bibliotekanauki.pl/articles/177768.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: magnetoacoustics
nonlinear wave phenomena
finite electrical conductivity
acoustic dispersion
acoustic heating
acoustic streaming
Opis:: Nonlinear phenomena of the planar and quasi-planar magnetoacoustic waves are considered. We Focus on deriving of equations which govern nonlinear excitation of the non-wave motions by the intense sound in initially static gaseous plasma. The plasma is treated as an ideal gas with finite electrical conductivity permeated by a magnetic field orthogonal to the trajectories of gas particles. This introduces dispersion of a flow. Magnetoacoustic heating and streaming in the field of periodic and aperiodic magnetoacoustic perturbations are discussed, as well as generation of the magnetic perturbations by sound. Two cases, corresponding to magnetosound perturbations of low and high frequencies, are considered in detail.
Źródło:: Archives of Acoustics; 2016, 41, 4; 691-699
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja