28 April 2018 Imaging of high-pressure fuel sprays in the near-nozzle region with supercontinuum illumination
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Abstract
We employ a supercontinuum (SC) illumination to image the high-pressure fuel sprays in the near-nozzle region. The effect of speckles in the images is significantly mitigated using the SC illumination to improve the identifiability of the microstructures in the spray. The microstructures in the near-nozzle region, i.e., lobes, holes, ligaments, and bridges, are clearly imaged for different fuel pressures and nozzle orifice diameters. The shadowgraphs captured in the experiments also show the spray cone angle of spray is strongly dependent on the injection pressures and nozzle orifice diameters.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yipeng Zheng, Jin-Hai Si, Wenjiang Tan, Mingxin Wang, Bo Yang, Xun Hou, "Imaging of high-pressure fuel sprays in the near-nozzle region with supercontinuum illumination," Optical Engineering 57(4), 043114 (28 April 2018). https://doi.org/10.1117/1.OE.57.4.043114 Submission: Received 19 December 2017; Accepted 16 April 2018
Submission: Received 19 December 2017; Accepted 16 April 2018
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