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雾化与喷雾
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ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

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雾化与喷雾

DOI: 10.1615/AtomizSpr.v12.i123.50
pages 91-106

SPREADING ANGLE AND CENTERLINE VARIATION OF DENSITY OF SUPERCRITICAL NITROGEN JETS

Michael Oschwald
DLR German Aerospace Center, Lampoldshausen, Baden-Württemberg, 74239, Germany

ABSTRACT

The atomization of a cryogenic nitrogen jet has been investigated under thermodynamic conditions typical/or high-pressure LOX/GH2 rocket combustors. At these cryogenic high-pressure conditions the injected fluid is near its critical point. Jet spreading angles and the variation of the centerline density downstream of the injector have been determined from density profiles obtained from spontaneous Rатап measurements. The results are compared with experiments and models describing the limiting cases of gas jet atomization and the disintegration of liquid sprays.


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