Cyclic Variability of Pulsed Spray Vapor Fields

Author

Jeffrey H. Wright
J. A. Drallmeier, Missouri University of Science and TechnologyFollow

Abstract

A two wavelength extinction technique is used to quantitatively measure the temporal fuel vapor field produced by pulsed automotive fuel injectors. Line-of-sight measurements are spatially deconvoluted to yield a picture of the overall, cycle-averaged, radial vapor concentration profiles. Vapor measurements are also given for single, consecutive, injection pulses, showing cycle-to-cycle variations in the vapor field. Methods to characterize the cyclic variability in the vapor field of a pulsed spray are discussed. As an illustrative example, the differences between an air assist and a non-air assist injector are shown as a function of duty cycle and axial location.

Recommended Citation

J. H. Wright and J. A. Drallmeier, "Cyclic Variability of Pulsed Spray Vapor Fields," Experiments in Fluids, Springer Verlag, Sep 1998.

The definitive version is available at https://doi.org/10.1007/s003480050237

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Cyclic Variability; Vapor Measurement; Vapors

International Standard Serial Number (ISSN)

0723-4864

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1998 Springer Verlag, All rights reserved.

Publication Date

01 Sep 1998