Atomization and Sprays Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

For Online Access

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1993, Volume3

Issue 1

126 pages

Issue price - $75.00

T.-H. Xu
Lehrstuhl für Strömungsmechanik, Universität Erlangen-Nürnberg, Erlangen, Germany

Franz Durst
Lehrstuhl für Strömungsmechanik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstrasse 4, D-91058 Erlangen, Germany

Cam Tropea
Chair of Fluid Mechanics and Aerodynamics (SLA), TU Darmstadt, Germany, Petersenstr. 30, D-64287 Darmstadt, Germany

This article investigates the possibilities of representing measured size distributions in sprays in the form of a three-parameter log-hyperbolic (3P-LH) distribution. This distribution is shown to be a special case of the more general four-parameter log-hyperbolic (4P-LH) distribution but exhibits a more stable behavior in the fitting of its parameters to empirical data. The problem of parameter estimation stability using the 4P-LH distribution has been identified, and explanations are given for its causes. The 3P-LH distribution circumvents these problems while yielding a nearly equally good representation of the data for a large variety of applications. The 3P-LH distribution is therefore concluded to be a valuable means of presenting large amounts of size distribution data in a more comprehensible manner.

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