Four Dimensional Visualization of Highly Transient Fuel Sprays by Microsecond Quantitative X-Ray Tomography

Abstract

An ultrafast x-raymicrotomography technique based on synchrotron x rays and a fast-framing x-ray detector was developed to reconstruct the highly transient sprays in four dimensions with microsecond-temporal resolution in the near-nozzle region. The time-resolved quantitative fuel distribution allowed a realistic numerical fluid dynamic simulation with initial conditions based on the measurement, which demonstrates that the fuel has completed the primary breakup upon exiting the nozzle. The secondary-breakup-based simulation agrees well with the experimental fuel-volume fraction distribution, which challenges most existing simulation assumptions and results.

Department(s)

Nuclear Engineering and Radiation Science

Keywords and Phrases

X-Ray Detectors; Medical Imaging; Tomography; Image Reconstruction; Medical Image Reconstruction

International Standard Serial Number (ISSN)

0003-6951

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 American Institute of Physics (AIP), All rights reserved.

Publication Date

01 Jan 2009

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