Outward-Opening Hollow-Cone Spray Characterization by Experimental and Numerical Approach in Evaporative and Non-Evaporative Conditions
| Autor: | Carlo Beatrice, Marianna Migliaccio, Alessandro Montanaro, Roberto Ianniello, Valentina Fraioli, Luigi Allocca |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | SAE technical paper series (2017). doi:10.4271/2017-24-0108 info:cnr-pdr/source/autori:Montanaro A.; Migliaccio M.; Allocca L.; Beatrice C.; Fraioli V.; Ianniello R./titolo:Outward-Opening Hollow-Cone Spray Characterization by Experimental and Numerical Approach in Evaporative and Non-Evaporative Conditions/doi:10.4271%2F2017-24-0108/rivista:SAE technical paper series/anno:2017/pagina_da:/pagina_a:/intervallo_pagine:/volume |
| DOI: | 10.4271/2017-24-0108 |
| Popis: | In the present paper, a new concept of open nozzle spray was investigated as possible application for compression ignition engines. The study concerns an experimental and numerical characterization of a spray generated through a prototype high-pressure hollow-cone nozzle (HCN). The experimental description of the injection process was carried out under evaporative and non-evaporative conditions injecting the fuel in a constant-volume combustion vessel controlled in pressure and temperature in order to measure the spatial and temporal fuel pattern at engine-like gas densities. OpenFOAM libraries in the lib-ICE version of the numerical code were employed for simulating the spray dynamics after a first validation phase based on the experimental data. Results show a typical spray structure of the outward-opening nozzle with the overall fluid-dynamic arrangement having a good fuel distribution along the hollow-cone geometry but showing a reduced spatial penetration. The first feature appears very interesting in view of an application to premixed controlled combustion concepts using dedicated piston geometries. |
| Databáze: | OpenAIRE |
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