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fuel injection and combustion processes in small jet engines

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• The jump-wise spray cone angle (till 130 0 ) occurs at low liquid pressure<br />

drop (“onion” stage) while <strong>in</strong>creas<strong>in</strong>g air pressure drop.<br />

• Reason: sub-ambient air pressure with<strong>in</strong> <strong>jet</strong> that helps to overcome the<br />

liquid bubble surface tension.<br />

•The large spray angle make it useful for <strong>small</strong> <strong>jet</strong> eng<strong>in</strong>es due to short<br />

residence time of droplets.<br />

יום העיון החמישי במנוע<br />

סילון וטורבינות גז<br />

יום ה',‏ א'‏ בחשון תשס"ו,‏<br />

03/11/2005<br />

Turbo <strong>and</strong> Jet<br />

Eng<strong>in</strong>e Laboratory<br />

Technion – Israel<br />

www. <strong>jet</strong>-eng<strong>in</strong>e-lab.technion.ac.il

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