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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)

Выходит 12 номеров в год

ISSN Печать: 1044-5110

ISSN Онлайн: 1936-2684

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Indexed in

SHEET ATOMIZATION OF NON-NEWTONIAN LIQUIDS

Том 13, Выпуск 2&3, 2003, 31 pages
DOI: 10.1615/AtomizSpr.v13.i23.30
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Краткое описание

An experimental investigation is made of the sheet atomization of dilute concentrations of flexible 9 ґ 106 molecular-weight nonionic polyacrylamide in glycerin-thickened aqueous solutions. These solutions are sprayed through a single fan male at pressures of 1.4-21 MPa. The original molecular weight and extensional viscosity are significantly degraded at all pressures by the strain rates imposed by the spray system and nozzle. In spite of this degradation, however, the sheet breakup features are nonetheless visibly altered by these dilute polymer concentrations. From our results, the physics of polymeric solution sheet breakup appears to be a combination of destabilizing and stabilizing extensional viscosity effects. The destabilizer is the amplification of sheet waves at the nozzle exit, which leads to decreased sheet breakup lengths, whereas the stabilizer is the extensional viscosity-induced increase of wavelength. Implications of these results are considered in terms of rheological instruments and industrial applications, especially "airless" spray painting.

ЦИТИРОВАНО В
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  2. Gleason Kevin, Voota Harish, Putnam Shawn A., Steady-state droplet evaporation: Contact angle influence on the evaporation efficiency, International Journal of Heat and Mass Transfer, 101, 2016. Crossref

  3. Qian Lijuan, Lin Jianzhong, Bao Fubing, Numerical Models for Viscoelastic Liquid Atomization Spray, Energies, 9, 12, 2016. Crossref

  4. Li Guangfen, Flores Susana Moreno, Vavilala Chandrasekhar, Schmittel Michael, Graf Karlheinz, Evaporation Dynamics of Microdroplets on Self-Assembled Monolayers of Dialkyl Disulfides, Langmuir, 25, 23, 2009. Crossref

  5. Gleason Kevin, Putnam Shawn A., Microdroplet Evaporation with a Forced Pinned Contact Line, Langmuir, 30, 34, 2014. Crossref

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