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Direct computation of a heated axisymmetric pulsating jet

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Direct computation of a heated axisymmetric pulsating jet. / Jiang, X ; Zhao, H ; Cao, L et al.
In: Numerical Heat Transfer, Part A Applications, Vol. 46, No. 10, 12.2004, p. 957-979.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Jiang, X, Zhao, H, Cao, L & Jiang, X 2004, 'Direct computation of a heated axisymmetric pulsating jet', Numerical Heat Transfer, Part A Applications, vol. 46, no. 10, pp. 957-979. https://doi.org/10.1080/10407780490520814

APA

Jiang, X., Zhao, H., Cao, L., & Jiang, X. (2004). Direct computation of a heated axisymmetric pulsating jet. Numerical Heat Transfer, Part A Applications, 46(10), 957-979. https://doi.org/10.1080/10407780490520814

Vancouver

Jiang X, Zhao H, Cao L, Jiang X. Direct computation of a heated axisymmetric pulsating jet. Numerical Heat Transfer, Part A Applications. 2004 Dec;46(10):957-979. doi: 10.1080/10407780490520814

Author

Jiang, X ; Zhao, H ; Cao, L et al. / Direct computation of a heated axisymmetric pulsating jet. In: Numerical Heat Transfer, Part A Applications. 2004 ; Vol. 46, No. 10. pp. 957-979.

Bibtex

@article{3636237ca2c742a8874c565287bae867,
title = "Direct computation of a heated axisymmetric pulsating jet",
abstract = "Effects of pulsating frequency and amplitude on the flow structure and mixing of a heated axisymmetric subsonic jet have been examined by direct solution of the compressible Navier-Stokes equations using highly accurate numerical methods. The organized unsteadiness associated with the periodic pulsation leads to a variety of vortical structures in the pulsating flow field. It is found that the vortical structures become smaller with increased pulsating frequency. At a high enough pulsating frequency, the jet is underexpanded near the nozzle and it does not develop large-scale vortical structures downstream. It is also found that pulsating amplitude has a strong effect on the flow structure and that vortex pairing occurs at relatively low pulsating amplitudes. The simulations show that lower pulsating frequency and larger pulsating amplitudes lead to stronger jet mixing with the ambient and faster decay of temperature.",
keywords = "BOUNDARY-CONDITIONS, OSCILLATING JETS, PULSED JETS, FLOW, ENHANCEMENT, SIMULATIONS, GENERATION, SCHEMES, MODE",
author = "X Jiang and H Zhao and L Cao and Xi Jiang",
year = "2004",
month = dec,
doi = "10.1080/10407780490520814",
language = "English",
volume = "46",
pages = "957--979",
journal = "Numerical Heat Transfer, Part A Applications",
issn = "1040-7782",
publisher = "Taylor and Francis Ltd.",
number = "10",

}

RIS

TY - JOUR

T1 - Direct computation of a heated axisymmetric pulsating jet

AU - Jiang, X

AU - Zhao, H

AU - Cao, L

AU - Jiang, Xi

PY - 2004/12

Y1 - 2004/12

N2 - Effects of pulsating frequency and amplitude on the flow structure and mixing of a heated axisymmetric subsonic jet have been examined by direct solution of the compressible Navier-Stokes equations using highly accurate numerical methods. The organized unsteadiness associated with the periodic pulsation leads to a variety of vortical structures in the pulsating flow field. It is found that the vortical structures become smaller with increased pulsating frequency. At a high enough pulsating frequency, the jet is underexpanded near the nozzle and it does not develop large-scale vortical structures downstream. It is also found that pulsating amplitude has a strong effect on the flow structure and that vortex pairing occurs at relatively low pulsating amplitudes. The simulations show that lower pulsating frequency and larger pulsating amplitudes lead to stronger jet mixing with the ambient and faster decay of temperature.

AB - Effects of pulsating frequency and amplitude on the flow structure and mixing of a heated axisymmetric subsonic jet have been examined by direct solution of the compressible Navier-Stokes equations using highly accurate numerical methods. The organized unsteadiness associated with the periodic pulsation leads to a variety of vortical structures in the pulsating flow field. It is found that the vortical structures become smaller with increased pulsating frequency. At a high enough pulsating frequency, the jet is underexpanded near the nozzle and it does not develop large-scale vortical structures downstream. It is also found that pulsating amplitude has a strong effect on the flow structure and that vortex pairing occurs at relatively low pulsating amplitudes. The simulations show that lower pulsating frequency and larger pulsating amplitudes lead to stronger jet mixing with the ambient and faster decay of temperature.

KW - BOUNDARY-CONDITIONS

KW - OSCILLATING JETS

KW - PULSED JETS

KW - FLOW

KW - ENHANCEMENT

KW - SIMULATIONS

KW - GENERATION

KW - SCHEMES

KW - MODE

U2 - 10.1080/10407780490520814

DO - 10.1080/10407780490520814

M3 - Journal article

VL - 46

SP - 957

EP - 979

JO - Numerical Heat Transfer, Part A Applications

JF - Numerical Heat Transfer, Part A Applications

SN - 1040-7782

IS - 10

ER -