Publicou 6 edições por ano
ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110
Indexed in
Spray Break-Up Process of Diesel Fuel Investigated Close to the Nozzle
RESUMO
The most common spray break-up models for fuel atomization are presented and discussed. Different break-up models show different spray characteristics and none of the presented models can explain the phenomena observed in several recent works. Up to now there is no confirmation for one of them. Here, a light sheet technique was used to investigate the spray structures close to the nozzle orifice by means of a new detection optics. The experimental results show a liquid jet which is dispersed with cavitation bubbles especially at the edge of the jet. The bubbles implode next to the orifice and create strong disturbances which are increased by aerodynamic interactions. Based on these observation a new idea of a break-up model has been developed. Additionally the two-phase flow was used to determine the flow velocity close to the nozzle.
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Brusiani Federico, Bianchi Gian Marco, Tiberi Alessandro, Primary Breakup Model for Turbulent Liquid Jet Based on Ligament Evolution, SAE Technical Paper Series, 1, 2012. Crossref
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Bianchi Gian Marco, Minelli Fabio, Scardovelli Ruben, Zaleski Stephan, 3D Large Scale Simulation of the High-Speed Liquid Jet Atomization, SAE Technical Paper Series, 1, 2007. Crossref
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Bianchi Gian Marco, Pelloni Piero, Toninel Stefano, Scardovelli Ruben, Leboissetier Anthony, Zaleski Stephan, Improving the Knowledge of High-Speed Liquid Jets Atomization by Using Quasi-Direct 3D Simulation, SAE Technical Paper Series, 1, 2005. Crossref
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Bae Choongsik, Kang Jinsuk, The structure of a break-up zone in the transient diesel spray of a valve-covered orifice nozzle, International Journal of Engine Research, 7, 4, 2006. Crossref
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Bae Choongsik, Yu Jun, Kang Jinsuk, Kong Jangsik, Lee Kyeong Ook, Effect of Nozzle Geometry on the Common-Rail Diesel Spray, SAE Technical Paper Series, 1, 2002. Crossref