TY - GEN
T1 - An energy integral method analysis of preferred modes and the spreading rates of supersonic circular jets
AU - Yu, Dehai
AU - Gu, Hongbin
AU - Zhang, Peng
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2015
Y1 - 2015
N2 - Jet spreading plays a crucial role in process of fuel mixing in supersonic combustion. The jet preferred mode signifies the maximum spreading rate of the shear layer of jets under periodic excitation. In this paper, linear frequency response of compressible axisymmetric jets was analyzed based on an energy integral method. The jet preferred mode was numerically identified, and its dependence on various flow parameters were analyzed. The most interesting discovery of the analysis is that the jet preferred frequency, which is denoted by Strouhal number Stp = fpD/u0, is found to vary in non-monotonic manner with the jet exit Mach number M0. The implication of the result for mixing enhancement of supersonic jets with ambient fluids was also discussed.
AB - Jet spreading plays a crucial role in process of fuel mixing in supersonic combustion. The jet preferred mode signifies the maximum spreading rate of the shear layer of jets under periodic excitation. In this paper, linear frequency response of compressible axisymmetric jets was analyzed based on an energy integral method. The jet preferred mode was numerically identified, and its dependence on various flow parameters were analyzed. The most interesting discovery of the analysis is that the jet preferred frequency, which is denoted by Strouhal number Stp = fpD/u0, is found to vary in non-monotonic manner with the jet exit Mach number M0. The implication of the result for mixing enhancement of supersonic jets with ambient fluids was also discussed.
UR - https://www.scopus.com/pages/publications/84947264681
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84947264681&origin=recordpage
M3 - RGC 32 - Refereed conference paper (with host publication)
T3 - ASPACC 2015 - 10th Asia-Pacific Conference on Combustion
BT - ASPACC 2015 - 10th Asia-Pacific Conference on Combustion
PB - Combustion Institute
T2 - 10th Asia-Pacific Conference on Combustion, ASPACC 2015
Y2 - 19 July 2015 through 22 July 2015
ER -