Influence of Breakup Regimes on the Droplet Size Produced by Splash-Plate Nozzles
An experimental study was conducted to identify the influence of the breakup regime on the droplet sizes produced by a splash-plate nozzle. Sprays formed by splash-plate atomizers were categorized according to the different types of breakup regimes of a spreading liquid sheet. Mean droplet sizes of...
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| Veröffentlicht in: | AIAA journal 2009-03, Vol.47 (3), p.516-522 |
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| creator | Ahmed, M Ashgriz, N Tran, H. N |
| description | An experimental study was conducted to identify the influence of the breakup regime on the droplet sizes produced by a splash-plate nozzle. Sprays formed by splash-plate atomizers were categorized according to the different types of breakup regimes of a spreading liquid sheet. Mean droplet sizes of various splash-plate nozzles were determined and they were correlated to liquid viscosity, nozzle diameter, and flow velocity. Various mixtures of corn syrup and water were used to obtain viscosities in the range of 1-140 mPa * s. Three different splash-plate nozzles of 0.5, 1, and 2mm with a constant plate angle of 55 deg were tested.Aphase Doppler particle analyzer was used to determine the droplet sizes generated at various operating conditions. The results indicated that the droplet-size correlations for a splash-plate atomizer depend on the liquid-sheet breakup regime. The effect of viscosity based on power-law correlation was changed by about 2 orders of magnitudes in the exponent when the breakup regime changed from the Rayleigh- Taylor instability regime with stable rim to the sheet perforation regime. [PUBLICATION ABSTRACT] |
| doi_str_mv | 10.2514/1.36081 |
| format | Article |
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N</creator><creatorcontrib>Ahmed, M ; Ashgriz, N ; Tran, H. N</creatorcontrib><description>An experimental study was conducted to identify the influence of the breakup regime on the droplet sizes produced by a splash-plate nozzle. Sprays formed by splash-plate atomizers were categorized according to the different types of breakup regimes of a spreading liquid sheet. Mean droplet sizes of various splash-plate nozzles were determined and they were correlated to liquid viscosity, nozzle diameter, and flow velocity. Various mixtures of corn syrup and water were used to obtain viscosities in the range of 1-140 mPa * s. Three different splash-plate nozzles of 0.5, 1, and 2mm with a constant plate angle of 55 deg were tested.Aphase Doppler particle analyzer was used to determine the droplet sizes generated at various operating conditions. The results indicated that the droplet-size correlations for a splash-plate atomizer depend on the liquid-sheet breakup regime. The effect of viscosity based on power-law correlation was changed by about 2 orders of magnitudes in the exponent when the breakup regime changed from the Rayleigh- Taylor instability regime with stable rim to the sheet perforation regime. 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N</creatorcontrib><title>Influence of Breakup Regimes on the Droplet Size Produced by Splash-Plate Nozzles</title><title>AIAA journal</title><description>An experimental study was conducted to identify the influence of the breakup regime on the droplet sizes produced by a splash-plate nozzle. Sprays formed by splash-plate atomizers were categorized according to the different types of breakup regimes of a spreading liquid sheet. Mean droplet sizes of various splash-plate nozzles were determined and they were correlated to liquid viscosity, nozzle diameter, and flow velocity. Various mixtures of corn syrup and water were used to obtain viscosities in the range of 1-140 mPa * s. Three different splash-plate nozzles of 0.5, 1, and 2mm with a constant plate angle of 55 deg were tested.Aphase Doppler particle analyzer was used to determine the droplet sizes generated at various operating conditions. The results indicated that the droplet-size correlations for a splash-plate atomizer depend on the liquid-sheet breakup regime. The effect of viscosity based on power-law correlation was changed by about 2 orders of magnitudes in the exponent when the breakup regime changed from the Rayleigh- Taylor instability regime with stable rim to the sheet perforation regime. [PUBLICATION ABSTRACT]</description><subject>Aerodynamics</subject><subject>Aerospace engineering</subject><subject>Exact sciences and technology</subject><subject>Experiments</subject><subject>Flow velocity</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Multiphase and particle-laden flows</subject><subject>Nonhomogeneous flows</subject><subject>Physics</subject><subject>Viscosity</subject><issn>0001-1452</issn><issn>1533-385X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNptkEtLBDEQhIMouD7wLwRRxMNoOpnXHnV9LYiuL_AWejMdHY0zYzIDur_e0RU96Kkp6qOKLsY2QOzJBOJ92FOpyGGBDSBRKlJ5cr_IBkIIiCBO5DJbCeGpVzLLYcCuxpV1HVWGeG35oSd87hp-TQ_lCwVeV7x9JH7k68ZRy2_KGfGJr4vOUMGn7_ymcRgeo4nDlvhFPZs5CmtsyaILtP59V9ndyfHt6Cw6vzwdjw7OI1Rx0kYxGGst5oQySWmqjClACpQW0mkCaSGgSIfD3jQp5hkOTTw0hc0zhZAXSLlaZZvz3MbXrx2FVj_Vna_6Si37zyUIkfbQzhwyvg7Bk9WNL1_Qv2sQ-nMuDfprrp7c_o7DYNBZj5Upww8uQcpMpFnPbc05LBF_K__G7f6LzW3dFFbbzrmW3lr1Acf_gqY</recordid><startdate>20090301</startdate><enddate>20090301</enddate><creator>Ahmed, M</creator><creator>Ashgriz, N</creator><creator>Tran, H. 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Three different splash-plate nozzles of 0.5, 1, and 2mm with a constant plate angle of 55 deg were tested.Aphase Doppler particle analyzer was used to determine the droplet sizes generated at various operating conditions. The results indicated that the droplet-size correlations for a splash-plate atomizer depend on the liquid-sheet breakup regime. The effect of viscosity based on power-law correlation was changed by about 2 orders of magnitudes in the exponent when the breakup regime changed from the Rayleigh- Taylor instability regime with stable rim to the sheet perforation regime. [PUBLICATION ABSTRACT]</abstract><cop>Reston, VA</cop><pub>American Institute of Aeronautics and Astronautics</pub><doi>10.2514/1.36081</doi><tpages>7</tpages></addata></record> |
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| source | Alma/SFX Local Collection |
| subjects | Aerodynamics Aerospace engineering Exact sciences and technology Experiments Flow velocity Fluid dynamics Fundamental areas of phenomenology (including applications) Multiphase and particle-laden flows Nonhomogeneous flows Physics Viscosity |
| title | Influence of Breakup Regimes on the Droplet Size Produced by Splash-Plate Nozzles |
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