Detail publikačního výsledku

A Meshless Method for the Acoustic Wave Propagation with the Weighted Least Squares Filtering

BAJKO, J.; ČERMÁK, L.; JÍCHA, M.

Originální název

A Meshless Method for the Acoustic Wave Propagation with the Weighted Least Squares Filtering

Anglický název

A Meshless Method for the Acoustic Wave Propagation with the Weighted Least Squares Filtering

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Meshless methods based on the collocation of hyperbolic equations are commonly stabilized using upwind approximation of the derivatives. This approach leads to stabilization of the numerical scheme, but its accuracy is significantly reduced by dissipation. For linear systems, however, high order of accuracy can be achieved by using central-type schemes and the stability of the numerical method can be ensured via filtering of the numerical solution. We present a simulation of the acoustic wave propagation phenomenon using meshless method that solves the Linearized Euler equations with the Weighted least squares filtering.

Anglický abstrakt

Meshless methods based on the collocation of hyperbolic equations are commonly stabilized using upwind approximation of the derivatives. This approach leads to stabilization of the numerical scheme, but its accuracy is significantly reduced by dissipation. For linear systems, however, high order of accuracy can be achieved by using central-type schemes and the stability of the numerical method can be ensured via filtering of the numerical solution. We present a simulation of the acoustic wave propagation phenomenon using meshless method that solves the Linearized Euler equations with the Weighted least squares filtering.

Klíčová slova

Meshless methods; Acoustic wave propagation; Weighted least squares

Klíčová slova v angličtině

Meshless methods; Acoustic wave propagation; Weighted least squares

Autoři

BAJKO, J.; ČERMÁK, L.; JÍCHA, M.

Rok RIV

2017

Vydáno

25.08.2016

ISBN

978-3-939296-11-9

Kniha

Proceedings of the INTER-NOISE 2016: 45th International Congress and Exposition on Noise Control Engineering

Strany od

1628

Strany do

1639

Strany počet

12

URL

http://pub.dega-akustik.de/IN2016/data/articles/000143.pdf

BibTex

@inproceedings{BUT129685,
  author="Jaroslav {Bajko} and Libor {Čermák} and Miroslav {Jícha}",
  title="A Meshless Method for the Acoustic Wave Propagation with the Weighted Least Squares Filtering",
  booktitle="Proceedings of the INTER-NOISE 2016: 45th International Congress and Exposition on Noise Control Engineering",
  year="2016",
  pages="1628--1639",
  isbn="978-3-939296-11-9",
  url="http://pub.dega-akustik.de/IN2016/data/articles/000143.pdf"
}