Research on Nozzle Geometry Measurement with Synchrotron Radiation X-Ray Phase Contrast Imaging Technique

Abstract:

The performance and emission characteristics of diesel engines are largely governed by fuel atomization and spray processes which in turn are strongly influenced by the flow dynamics inside the injector nozzle. Accurate measurement of the nozzle geometry is important for the study of the flow dynamics. Using the third-generation synchrontron radiation light source of the ShangHai Light Source (SSRF), the research team successfully captured the internal structure images of the single hole nozzle and multi-hole nozzle. According to the captured images, the researchers clearly observed the internal structure of nozzle as well as the sac region. The diameter and length of the nozzles and orifice angle were also be accurately measured.

• Periodical: Advanced Materials Research (Volumes 779-780)
• Pages: 1007-1014
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.779-780.1007
• Online since: September 2013
• Authors: Cang Su Xu, Qi Yuan Luo, Jian Ma, Fang Qi, Yi Fan Xu
• Keywords: Nozzle Geometry, Synchrotron Radiation, X-Ray Phase Contrast Imaging

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