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Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet

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Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet. / Jiang, Xi; Zhao, H ; Cao, L .

In: Computers and Mathematics with Applications, Vol. 51, No. 3-4, 02.2006, p. 643-660.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Jiang, X, Zhao, H & Cao, L 2006, 'Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet', Computers and Mathematics with Applications, vol. 51, no. 3-4, pp. 643-660. https://doi.org/10.1016/j.camwa.2005.03.022

APA

Jiang, X., Zhao, H., & Cao, L. (2006). Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet. Computers and Mathematics with Applications, 51(3-4), 643-660. https://doi.org/10.1016/j.camwa.2005.03.022

Vancouver

Author

Jiang, Xi ; Zhao, H ; Cao, L . / Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet. In: Computers and Mathematics with Applications. 2006 ; Vol. 51, No. 3-4. pp. 643-660.

Bibtex

@article{94f2e0c13aa84d40b67e50ba81882d78,
title = "Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet",
abstract = "The flow and sound fields of a heated axisymmetric pulsating jet have been investigated by direct numerical solution of the compressible Navier-Stokes equations in cylindrical coordinates using highly accurate numerical methods. Effects of pulsating frequency and amplitude on the flow structure and sound generation have been examined. The results show that the organized unsteadiness associated with the periodic pulsation leads to a variety of vortical structures in the pulsating flow field. The pulsating frequency and amplitude strongly affect the vortical flow structures and the radiated sound fields. At the higher pulsating frequency, the vortices in the pulsating jet become smaller and the radiated sound field has smaller wavelength. The pressure fluctuation amplitude of the sound field is inversely proportional to the distance from the sound source. Both the larger pulsating frequency and larger pulsating amplitude lead to stronger sound emissions from the pulsating jet, It has been found that the pressure fluctuation amplitude of the sound field is approximately proportional to the pulsating amplitude and frequency. (c) 2006 Elsevier Ltd. All rights reserved.",
keywords = "flow pulsation, jet noise, direct numerical simulations, BOUNDARY-CONDITIONS, DIRECT COMPUTATION, GENERATION, SCHEMES, NOISE",
author = "Xi Jiang and H Zhao and L Cao",
year = "2006",
month = feb,
doi = "10.1016/j.camwa.2005.03.022",
language = "English",
volume = "51",
pages = "643--660",
journal = "Computers and Mathematics with Applications",
issn = "0898-1221",
publisher = "Elsevier Limited",
number = "3-4",

}

RIS

TY - JOUR

T1 - Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet

AU - Jiang, Xi

AU - Zhao, H

AU - Cao, L

PY - 2006/2

Y1 - 2006/2

N2 - The flow and sound fields of a heated axisymmetric pulsating jet have been investigated by direct numerical solution of the compressible Navier-Stokes equations in cylindrical coordinates using highly accurate numerical methods. Effects of pulsating frequency and amplitude on the flow structure and sound generation have been examined. The results show that the organized unsteadiness associated with the periodic pulsation leads to a variety of vortical structures in the pulsating flow field. The pulsating frequency and amplitude strongly affect the vortical flow structures and the radiated sound fields. At the higher pulsating frequency, the vortices in the pulsating jet become smaller and the radiated sound field has smaller wavelength. The pressure fluctuation amplitude of the sound field is inversely proportional to the distance from the sound source. Both the larger pulsating frequency and larger pulsating amplitude lead to stronger sound emissions from the pulsating jet, It has been found that the pressure fluctuation amplitude of the sound field is approximately proportional to the pulsating amplitude and frequency. (c) 2006 Elsevier Ltd. All rights reserved.

AB - The flow and sound fields of a heated axisymmetric pulsating jet have been investigated by direct numerical solution of the compressible Navier-Stokes equations in cylindrical coordinates using highly accurate numerical methods. Effects of pulsating frequency and amplitude on the flow structure and sound generation have been examined. The results show that the organized unsteadiness associated with the periodic pulsation leads to a variety of vortical structures in the pulsating flow field. The pulsating frequency and amplitude strongly affect the vortical flow structures and the radiated sound fields. At the higher pulsating frequency, the vortices in the pulsating jet become smaller and the radiated sound field has smaller wavelength. The pressure fluctuation amplitude of the sound field is inversely proportional to the distance from the sound source. Both the larger pulsating frequency and larger pulsating amplitude lead to stronger sound emissions from the pulsating jet, It has been found that the pressure fluctuation amplitude of the sound field is approximately proportional to the pulsating amplitude and frequency. (c) 2006 Elsevier Ltd. All rights reserved.

KW - flow pulsation

KW - jet noise

KW - direct numerical simulations

KW - BOUNDARY-CONDITIONS

KW - DIRECT COMPUTATION

KW - GENERATION

KW - SCHEMES

KW - NOISE

U2 - 10.1016/j.camwa.2005.03.022

DO - 10.1016/j.camwa.2005.03.022

M3 - Journal article

VL - 51

SP - 643

EP - 660

JO - Computers and Mathematics with Applications

JF - Computers and Mathematics with Applications

SN - 0898-1221

IS - 3-4

ER -