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Atomization and Sprays
Editor-in-Chief Europe: Günter Brenn (open in a new tab)
Editor-in-Chief Americas: Marcus Herrmann (open in a new tab)
Редактор-основатель: Norman Chigier (open in a new tab)

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ISSN Печать: 1044-5110

ISSN Онлайн: 1936-2684

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EMPIRICAL CALCULATION MODEL OF THE ATOMIZATION OF A LIQUID SHEET AND A ROUND LIQUID JET IN A GASEOUS FLOW FIELD

Том 8, Выпуск 3, 1998, pp. 267-289
DOI: 10.1615/AtomizSpr.v8.i3.30
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Краткое описание

This article presents a 1D, empirically based model for the prediction of spray charactiristics for either a liquid sheet or a round liquid jet injected into a high-velocity gaseous flow field. The model includes both primary and secondary atomization process.
In the primary breakup process, the local atomization rate and the initial size and velocity of the droplets are calculated, where the local atomization rate is basically derived from the balance of static force acting on the disturbed surface layer. In the subsequent acceleration process of the droplets, the changes in size and number are calculated. The evaluation of these characteristics is based on the energy and mass conservation equations of the droplets, where the critical Eötvös number, which was derived experimentally in the authors' former study, is substituted in the term of the energy equation. Thereafter, as the final state of the whole atomization process, final droplet sizes and their distributions are obtained. Comparison of the representative size and distribution of the spray between the calculated results and experimental results showed reasonable agreement. Comparisons were also made with other experimental data and showed good agreement.

ЦИТИРОВАНО В
  1. YATSUYANAGI Nobuyuki, Study on the Design Criteria of the Coaxial Injector for a LOX/Hydrogen Rocket Engine —Evaluation of Design for Injectors of the LE-5 Engine and Its Derivatives—, TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 50, 169, 2007. Crossref

  2. YATSUYANAGI Nobuyuki, Study on Breakup Length of Liquid Jet by Liquid-Gas Coaxial Injector —Evaluation of Atomization Characteristics of Rocket Engine Injectors—, TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 49, 165, 2006. Crossref

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