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Drop size distribution for spray by full cone nozzle
Author(s) -
Sada Eizo,
Takahashi Katsuroku,
Morikawa Kazuhiko,
Ito Shigeru
Publication year - 1978
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450560404
Subject(s) - nozzle , logarithm , geometric standard deviation , standard deviation , drop (telecommunication) , spray nozzle , mathematics , distribution (mathematics) , mechanics , spray characteristics , geometric mean , materials science , power function , pressure drop , geometry , physics , mathematical analysis , statistics , thermodynamics , engineering , electrical engineering
Experiments were carried out to measure the drop size distribution in the spray produced by a full cone nozzle. At the center of the spray the distribution has one peak that can be expressed as a logarithmic normal distribution function. However, the distribution at other part of the spray has two peaks. Here it can be expressed as the sum of two distribution functions. At the vertical distance of 50 cm from the nozzle and the radial distance of 20 cm from the center of the spray, the geometric mean diameters of the first and the second peak are 61 and 235 μm, respectively, for an injection pressure of 294 KPa. For the same condition, the logarithmic standard deviations of the first and the second peak are 2.08 and 2.40, respectively. At the same position in the spray the geometric mean diameter varies in proportion to —0.2 power of injection pressure and the logarithmic standard deviation does not depend on injection pressure.