Title

Time-Resolved Pulsed Spray Drop Sizing At Elevated Pressures

Abstract

An experimental program was conducted to measure drop sizes in pulsed sprays for diesel and fuel-injected spark ignition engine applications. A forward-scattering unit was designed with a high-speed data acquisition system to permit the measurement of drop sizes in sprays at 0. 4-ms intervals. Data were taken at elevated pressures from 0. 345 to 3. 45 MPa with a 0-deg pintle nozzle. The Sauter Mean Diameter (SMD) in the secondary injection region tended to increase as the pressure in the fuel line decreased and tended to increase with increasing environmental pressure, both suggesting an inverse relationship between drop size and the pressure drop across the nozzle.

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.


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