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雾化与喷雾
影响因子: 1.262 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

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雾化与喷雾

DOI: 10.1615/AtomizSpr.v4.i3.40
pages 291-301

SPRAY CONE ANGLES OF EFFERVESCENT ATOMIZERS

S. Kevin Chen
Thermal Sciences and Propulsion Center, School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
Arthur H. Lefebvre
Emeritus Professor, Cranfield University, Stratford, U.K., and Purdue University, W. Lafayette, IN, USA

ABSTRACT

The spray cone angles produced by a plain-orifice effervescent atomizer are examined using three fluids whose viscosities range from 0.001 to 0.023 kg/ms (1 to 23 cp) and surface tensions from 0.030 to 0.080 kg/s2 (30 to 80 dynes/cm). Measurements of the visible spray cone angle were carried out over wide ranges of both air injection and ambient air pressures. The results obtained show that the sprays produced in effervescent atomization have appreciably wider cone angles than those produced by plain-orifice pressure atomizers. In general, spray angles are widened by reductions in liquid viscosity and surface tension and by increases in atomizing air injection pressure.


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