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Title: An experimental investigation of gas fuel injection with X-ray radiography

Abstract

In this paper, an outward-opening compressed natural gas, direct injection fuel injector has been studied with single-shot x-ray radiography. Three dimensional simulations have also been performed to compliment the x-ray data. Argon was used as a surrogate gas for experimental and safety reasons. This technique allows the acquisition of a quantitative mapping of the ensemble-average and standard deviation of the projected density throughout the injection event. Two dimensional, ensemble average and standard deviation data are presented to investigate the quasi-steady-state behavior of the jet. Upstream of the stagnation zone, minimal shot-to-shot variation is observed. Downstream of the stagnation zone, bulk mixing is observed as the jet transitions to a subsonic turbulent jet. From the time averaged data, individual slices at all downstream locations are extracted and an Abel inversion was performed to compute the radial density distribution, which was interpolated to create three dimensional visualizations. The Abel reconstructions reveal that upstream of the stagnation zone, the gas forms an annulus with high argon density and large density gradients. Inside this annulus, a recirculation region with low argon density exists. Downstream, the jet transitions to a fully turbulent jet with Gaussian argon density distributions. This experimental data is intended to servemore » as a quantitative benchmark for simulations.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
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  1. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE
OSTI Identifier:
1360147
Alternate Identifier(s):
OSTI ID: 1419541
Grant/Contract Number:  
AC02-06CH11357; DEAC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Experimental Thermal and Fluid Science
Additional Journal Information:
Journal Volume: 87; Journal Issue: C; Journal ID: ISSN 0894-1777
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; x-ray radiography; fuel injection; gas jet; underexpanded jet; abel inversion; simulations

Citation Formats

Swantek, Andrew B., Duke, D. J., Kastengren, A. L., Sovis, N., Powell, C. F., Bartolucci, L., Scarcelli, R., and Waller, T. An experimental investigation of gas fuel injection with X-ray radiography. United States: N. p., 2017. Web. doi:10.1016/j.expthermflusci.2017.04.016.
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Swantek, Andrew B., Duke, D. J., Kastengren, A. L., Sovis, N., Powell, C. F., Bartolucci, L., Scarcelli, R., & Waller, T. An experimental investigation of gas fuel injection with X-ray radiography. United States. https://doi.org/10.1016/j.expthermflusci.2017.04.016
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Swantek, Andrew B., Duke, D. J., Kastengren, A. L., Sovis, N., Powell, C. F., Bartolucci, L., Scarcelli, R., and Waller, T. Fri . "An experimental investigation of gas fuel injection with X-ray radiography". United States. https://doi.org/10.1016/j.expthermflusci.2017.04.016. https://www.osti.gov/servlets/purl/1360147.
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@article{osti_1360147,
title = {An experimental investigation of gas fuel injection with X-ray radiography},
author = {Swantek, Andrew B. and Duke, D. J. and Kastengren, A. L. and Sovis, N. and Powell, C. F. and Bartolucci, L. and Scarcelli, R. and Waller, T.},
abstractNote = {In this paper, an outward-opening compressed natural gas, direct injection fuel injector has been studied with single-shot x-ray radiography. Three dimensional simulations have also been performed to compliment the x-ray data. Argon was used as a surrogate gas for experimental and safety reasons. This technique allows the acquisition of a quantitative mapping of the ensemble-average and standard deviation of the projected density throughout the injection event. Two dimensional, ensemble average and standard deviation data are presented to investigate the quasi-steady-state behavior of the jet. Upstream of the stagnation zone, minimal shot-to-shot variation is observed. Downstream of the stagnation zone, bulk mixing is observed as the jet transitions to a subsonic turbulent jet. From the time averaged data, individual slices at all downstream locations are extracted and an Abel inversion was performed to compute the radial density distribution, which was interpolated to create three dimensional visualizations. The Abel reconstructions reveal that upstream of the stagnation zone, the gas forms an annulus with high argon density and large density gradients. Inside this annulus, a recirculation region with low argon density exists. Downstream, the jet transitions to a fully turbulent jet with Gaussian argon density distributions. This experimental data is intended to serve as a quantitative benchmark for simulations.},
doi = {10.1016/j.expthermflusci.2017.04.016},
journal = {Experimental Thermal and Fluid Science},
number = C,
volume = 87,
place = {United States},
year = {Fri Apr 21 00:00:00 EDT 2017},
month = {Fri Apr 21 00:00:00 EDT 2017}
}
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https://doi.org/10.1016/j.expthermflusci.2017.04.016
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    Works referencing / citing this record:

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