Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Equivalent hole diameter along the orifice of the injector

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Mass flow and momentum flux as a function of time for the “Spray A” injection case

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Discharge coefficient as a function of Reynolds number for two discharge pressures

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Area coefficient as a function of Reynolds number for two discharge pressures

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Sketch of the experimental arrangement to record injector acceleration

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Phase-contrast imaging experimental arrangement to record needle motion

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: ), mass flow rate (g/s), and momentum flux (N) for two injection durations. The difference in time between control volume closure and EOI is also indicated. pinj = 150 MPa; pb = 20 bar.

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Normalized spectral density of ROI, momentum, acceleration, and line pressure at “Spray A”

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: X-ray beam absorption to show injector oscillations during “Spray A” injection

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Needle position and speed in the axial direction as a function of time for the “Spray A” case

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Normalized spectral density of the acceleration, injector oscillations, and needle speed for “Spray A”

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Schematic of the injector showing the internal fuel tubing and the mechanism to action the needle

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Normalized spectral density of the ROI, momentum, and acceleration for the large oscillations period during a 4-ms-long injection

Date of download: 10/27/2017 Copyright © ASME. All rights reserved. From: Understanding the Acoustic Oscillations Observed in the Injection Rate of a Common-Rail Direct Injection Diesel Injector J. Eng. Gas Turbines Power. 2012;134(12):122801-122801-10. doi:10.1115/1.4007276 Figure Legend: Projected fuel density in the spray (0.1 mm from exit) as a function of time for “Spray A” injection. The dashed lines represent a period of the main oscillations.