Publication detail
Assessment of Energy Spectra Discretization of Stochastic Noise Generation and Radiation Model
NIEDOBA, P. JÍCHA, M. ČERMÁK, L.
English title
Assessment of Energy Spectra Discretization of Stochastic Noise Generation and Radiation Model
Type
Paper in proceedings (conference paper)
Language
en
Original abstract
The paper deals with the Stochastic Noise Generation and Radiation (SNGR) model based on synthesizing of turbulent velocity components from known turbulent flow properties, e.g. turbulent kinetic energy, turbulence dissipation rate and energy spectra. Using these input parameters the output turbulent velocity field is generated by the synthesis of a finite sum of random Fourier modes. The distrubution and the number of these modes has a direct impact on accuracy and computational demands. The purpose of this research is to show the dependence of the SNGR model on the Fourier modes distribution. Another goal is to determine the minimal number of Fourier modes for each distribution.
Keywords in English
Stochastic Noise Generation and Radiation model, energy spectra, stochastics
Released
2015-08-09
ISSN
0736-2935
Book
Proceedings of INTER-NOISE 2015
Pages from–to
1–6
Pages count
6
BIBTEX
@inproceedings{BUT115678,
author="Pavel {Niedoba} and Miroslav {Jícha} and Libor {Čermák}",
title="Assessment of Energy Spectra Discretization of Stochastic Noise Generation and Radiation Model",
booktitle="Proceedings of INTER-NOISE 2015",
year="2015",
journal="Proceedings - National Conference on Noise Control Engineering",
pages="1--6",
issn="0736-2935"
}