A non-field analytical method for solving problems in aero-acoustics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F20%3A00346111" target="_blank" >RIV/68407700:21220/20:00346111 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1038/s41598-020-76687-x" target="_blank" >https://doi.org/10.1038/s41598-020-76687-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-020-76687-x" target="_blank" >10.1038/s41598-020-76687-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A non-field analytical method for solving problems in aero-acoustics

Popis výsledku v původním jazyce

In 2000, a non-field analytical method for solving various problems of energy and information transport has been developed by Kulish and Lage. Based on the Laplace transform technique, this elegant method yields closed-form solutions written in the form of integral equations, which relate local values of an intensive properties such as, for instance, velocity, mass concentration, temperature with the corresponding derivative, that is, shear stress, mass flux, temperature gradient. Over the past 20 years, applied to solving numerous problems of energy and information transport, the method-now known as the method of Kulish-proved to be very efficient. In this paper-for the first time-the method is applied to problems in aeroacoustic. As a result, an integral relation between the local values of the acoustic pressure and the corresponding velocity perturbation has been derived. The said relation is valid for axisymmetric cases of planar, cylindrical and spherical geometries.

Název v anglickém jazyce

A non-field analytical method for solving problems in aero-acoustics

Popis výsledku anglicky

In 2000, a non-field analytical method for solving various problems of energy and information transport has been developed by Kulish and Lage. Based on the Laplace transform technique, this elegant method yields closed-form solutions written in the form of integral equations, which relate local values of an intensive properties such as, for instance, velocity, mass concentration, temperature with the corresponding derivative, that is, shear stress, mass flux, temperature gradient. Over the past 20 years, applied to solving numerous problems of energy and information transport, the method-now known as the method of Kulish-proved to be very efficient. In this paper-for the first time-the method is applied to problems in aeroacoustic. As a result, an integral relation between the local values of the acoustic pressure and the corresponding velocity perturbation has been derived. The said relation is valid for axisymmetric cases of planar, cylindrical and spherical geometries.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Svazek periodika

10

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000595255700081

EID výsledku v databázi Scopus

2-s2.0-85095882283