Four Dimensional Visualization of Highly Transient Fuel Sprays by Microsecond Quantitative X-Ray Tomography
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.
X. Liu et al., "Four Dimensional Visualization of Highly Transient Fuel Sprays by Microsecond Quantitative X-Ray Tomography," Applied Physics Letters, American Institute of Physics (AIP), Jan 2009.
The definitive version is available at http://dx.doi.org/10.1063/1.3048563
Mining and Nuclear Engineering
Keywords and Phrases
X-Ray Detectors; Medical Imaging; Tomography; Image Reconstruction; Medical Image Reconstruction
Article - Journal
© 2009 American Institute of Physics (AIP), All rights reserved.