Structure of an acoustically forced turbulent spray flame

Dynamics and stability of lean-premixed swirl-stabilized combustion

“…Although considerable efforts have been devoted to studying forced shear layers and jets in the past few decades (Ho and Huerre [123], Panda and McLaughlin [128], Longmire and Eaton [176], Swanson and Richards [177], Cerecedo et al [178], Gallaire et al [132]), relatively limited investigations have been conducted to examine the response of a swirl injector to externally imposed excitations [179][180][181][182][183][184][185][186]. Cohen and Hibshman [179] studied the response of a two-passage swirl injector over a frequency range from 300 to 600 Hz.…”

“…Strong interactions between the pulsed airflow and the fuel spray mass flow rate were observed in the range of 350-650 Hz. Haile et al [181,182] also performed a study to characterize the spray field of a liquid fuel injector under continuous and modulated flow conditions. The results indicate that strong modulation of the flow rate is observed at low forcing frequencies, but the time-averaged flow rate is reduced.…”

Thermoacoustic limit cycles in a premixed laboratory combustor with open and choked exits

“…CH * chemiluminescence is perhaps the simplest of these techniques, and a fast response measurement of the flame's overall emission can be obtained with only a photomultiplier tube (PMT) and narrowband filter. This technique has been used by several researchers to infer the heat release rate [53][54][55][56][57].…”

Direct numerical simulation of spray flame/acoustic interactions

“…Haile et al [8] have suggested some physical parameters that could relate the characteristic properties of the combustion phenomena and the acoustic modulations:…”