Imaging of high-pressure fuel sprays in the near-nozzle region with supercontinuum illumination

Yipeng Zheng; Jin-Hai Si; Wenjiang Tan; Mingxin Wang; Bo Yang; Xun Hou

doi:10.1117/1.OE.57.4.043114

28 April 2018 Imaging of high-pressure fuel sprays in the near-nozzle region with supercontinuum illumination

Yipeng Zheng, Jin-Hai Si, Wenjiang Tan, Mingxin Wang, Bo Yang, Xun Hou

Author Affiliations +

Optical Engineering, Vol. 57, Issue 4, 043114 (April 2018). https://doi.org/10.1117/1.OE.57.4.043114

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.

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Yipeng Zheng, Jin-Hai Si, Wenjiang Tan, Mingxin Wang, Bo Yang, and 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

Received: 19 December 2017; Accepted: 16 April 2018; Published: 28 April 2018

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