Ignition of sprays by an incident shock

✍ Scribed by Kenji Miyasaka; Yukio Mizutani

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 620 KB
• Volume: 25
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(75)90083-8

✦ Synopsis

A shock-tube technique was developed aiming at obtaining pure ignition delay data of sprays independent of the processes of atomization and mixing. A spray column, which was injected by an ultrasonic atomizer and freely falling through the low-pressure section of a shock tube placed horizontally, was ignited by an incident shock. This technique gave ignition delay periods as short as only a few tenths of those obtained by any conventional technique. This may be partly because the ignition delay data obtained by this technique include neither the period of atomization nor that of mixing, and partly because ignition took place in the micromist generated by the shattering of the original droplets in the spray.