타이틀 |
Atomization Characteristcs of a Prefilming Airblast Atomizer |
저자 |
Shigeru HAYASHI, Atsushi Koito, Manabu Hishiki |
Keyword |
Prefilming airblast atomization; Sauter mean diameter; SMD; swirling flow |
URL |
http://send.nal.go.jp/send/jpn/dlpdf.php3/naltm00644.pdf?id=NALTM0000644 |
보고서번호 |
NAL TM-644 |
발행년도 |
1992.1 |
출처 |
NAL (National Aerospace Laboratory of Japan) |
ABSTRACT |
The size distribution of water test sprays by a prefilming airblast atomizer used for aero engines was measured in swirling and non-swirling flows with the well established laser-scattering particle sizing technique. Atomizing air velocity (or pressure difference) was varied in a range wider than the conditions of actual engines. The sauter mean diameter (SMD) decreased at approximately a 1.5 power of the atomizing air velocity, being a higher velocity index than the previously reported values of 1-1.2. It was unexpectedly found that the effect of the liquid/a |