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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Kim, Jeong Soo Kim, Jin Seok Jung, Hun Park, Jeong Kim, Sungcho Jang, Ki-Won |
| Copyright Year | 2007 |
| Abstract | Spray characteristics of an injector employed in liquid-propellant thrusters are investigated by optical measurement techniques such as Particle Image Velocimetry (PIV) and Dual-mode Phase Doppler Anemometry (DPDA). The injector adopted in this experiment has 8 holes each of which has 30° cant angle from the center-axis with 16/1000 inches of hole diameter. Instantaneous plane images captured by PIV technique are examined in order to judge a pass-fail criterion of spray injection performance according to the specific pressures supplied. DPDA through which two-dimensional velocity components can be acquired is also applied in order to measure the velocity and size of spray droplets which were not obtainable from the PIV measurement. The non-dimensional parameters (e.g., Reynolds, Weber, and Ohnesorge numbers) based on the velocity data measured by DPDA are used to characterize the spray behavior in terms of the atomization and turbulence nature. Objectives of this experiment are to establish a non-intrusive evaluation technique for the injector performance and to utilize the clear understanding of spray characteristics for the design of brand-new thrust chamber as well. |
| Sponsorship | Fluids Engineering Division |
| Starting Page | 729 |
| Ending Page | 738 |
| Page Count | 10 |
| File Format | |
| ISBN | 0791842886 |
| DOI | 10.1115/FEDSM2007-37105 |
| e-ISBN | 0791838056 |
| Volume Number | Volume 1: Symposia, Parts A and B |
| Conference Proceedings | ASME/JSME 2007 5th Joint Fluids Engineering Conference |
| Language | English |
| Publisher Date | 2007-07-30 |
| Publisher Place | San Diego, California, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Liquid propellant thruster Dual-mode phase doppler anemometry (dpda) Spray droplet Atomization Injector Particle image velocimetry (piv) Optical measurement Propellants Particulate matter Drops Ejectors Sprays |
| Content Type | Text |
| Resource Type | Article |
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