The role of atomization in the coupling between doped droplets dynamics and their flames

The droplet and flame chemiluminescence dynamics as well their coupling during atomization events of graphene oxide doped diesel are investigated experimentally. tested doping concentrations 0, 0.001, 0.005, 0.01, 0.02% by weight. To minimize heat transfer between the its suspension mechanism, small diameter fibers used for suspension. Separate shadowgraphy OH* measurements performed at 4000 Hz to study dynamics, respectively. results show that both squared feature intermittent oscillations. oscillations RMS is positively related number intensity concentration. probability density function inverse time separation two consecutive power spectrum dominant large probabilities powers about 25 prior occurrence first intense event. After event, this frequency decreases 5 both. Although triggers amplitude Hz, it was argued retracting motion igniter induces Hz. Our findings suggest root cause smaller liquid fuel droplets with flames. This has implications spray combustion research.