Numerical study of the influence of the convective heat transport on acoustic streaming in a standing wave

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00319375" target="_blank" >RIV/68407700:21230/18:00319375 - isvavai.cz</a>

Výsledek na webu

<a href="http://asa.scitation.org/doi/full/10.1121/1.5023217?aemail=author" target="_blank" >http://asa.scitation.org/doi/full/10.1121/1.5023217?aemail=author</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1121/1.5023217" target="_blank" >10.1121/1.5023217</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical study of the influence of the convective heat transport on acoustic streaming in a standing wave

Popis výsledku v původním jazyce

Within this work, acoustic streaming in an air-filled cylindrical resonator with walls supporting a temperature gradient is studied by means of numerical simulations. A set of equations based on successive approximations is derived from the Navier-Stokes equations. The equations take into account the acoustic-streaming-driven convective heat transport; as time-averaged secondary-field quantities are directly calculated, the equations are much easier to integrate than the original fluid-dynamics equations. The model equations are implemented and integrated employing commercial software COMSOL Multiphysics. Numerical calculations are conducted for the case of a resonator with a wall-temperature gradient corresponding to the action of a thermoacoustic effect. It is shown that due to the convective heat transport, the streaming profile is considerably distorted even in the case of weak wall-temperature gradients.

Název v anglickém jazyce

Numerical study of the influence of the convective heat transport on acoustic streaming in a standing wave

Popis výsledku anglicky

Within this work, acoustic streaming in an air-filled cylindrical resonator with walls supporting a temperature gradient is studied by means of numerical simulations. A set of equations based on successive approximations is derived from the Navier-Stokes equations. The equations take into account the acoustic-streaming-driven convective heat transport; as time-averaged secondary-field quantities are directly calculated, the equations are much easier to integrate than the original fluid-dynamics equations. The model equations are implemented and integrated employing commercial software COMSOL Multiphysics. Numerical calculations are conducted for the case of a resonator with a wall-temperature gradient corresponding to the action of a thermoacoustic effect. It is shown that due to the convective heat transport, the streaming profile is considerably distorted even in the case of weak wall-temperature gradients.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

<a href="/cs/project/GA15-23079S" target="_blank" >GA15-23079S: Šíření akustických vln nelokálními disperzními zónami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA

ISSN

0001-4966

e-ISSN

1520-8524

Svazek periodika

143

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

727-734

Kód UT WoS článku

000424994000023

EID výsledku v databázi Scopus

2-s2.0-85041813600