Time-Resolved X-ray Radiography of Cavitation in a Metal Nozzle

Daniel J. Duke, Alan L Kastengren, Andrew B. Swantek, Katarzyna E. Matusik, Raul Payri, Juan P. Viera, Christopher F. Powell

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Making quantitative measurements of the vapor distribution in a cavitating nozzle is difficult, owing to the strong scattering of visible light at gas-liquid boundaries and wall boundaries, and the small length and time scales involved.
The transparent models required for optical experiments are also often limited to lower pressures, larger scale and shorter operating life than the metal nozzles used in fuel injection systems. It is also difficult to obtain a surface finish in a plastic nozzle that can reproduce the surface finish of metal nozzles. Over the past few years, x-ray radiography experiments at Argonne National Laboratory have demonstrated the ability to measure vapor fraction in cavitating plastic nozzles. In this paper, we present the results of new time-resolved radiography experiments performed in a beryllium nozzle with diameter D=0.50mm and length L=3.05mm. Beryllium is a light, brittle metal which is transparent to x-rays. Unlike plastics, it more closely replicates the machined surface finish found in steel fuel injector nozzles, and can withstand higher internal stresses. The spatial and temporal resolution of the data were 5 μm and 153 ns. The time-resolved nature of the measurement allows us to measure the fluctuations and
spectral properties of the vapor distribution.
Original languageEnglish
Title of host publicationILASS – Europe 2016, 27th Annual Conference on Liquid Atomization and Spray Systems
Subtitle of host publication4-7 September 2016, Brighton, UK
EditorsSergei Sazhin
PublisherInstitute for Liquid Atomization and Spray Systems
Pages1-10
Number of pages10
ISBN (Print)9781910172100
Publication statusPublished - 2016
Externally publishedYes
EventInternational Conference on Liquid Atomization and Spray Systems - University of Brighton, Brighton, United Kingdom
Duration: 4 Sep 20167 Sep 2016

Conference

ConferenceInternational Conference on Liquid Atomization and Spray Systems
Abbreviated titleILASS 2016
CountryUnited Kingdom
CityBrighton
Period4/09/167/09/16

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