Detail publikace

Investigation into Primary Break Up of Conical Liquid Sheets Produced by a Pressure Swirl Gasoline Direct Injector.

Originální název

Investigation into Primary Break Up of Conical Liquid Sheets Produced by a Pressure Swirl Gasoline Direct Injector.

Anglický název

Investigation into Primary Break Up of Conical Liquid Sheets Produced by a Pressure Swirl Gasoline Direct Injector.

Jazyk

en

Originální abstrakt

The fuel break up and atomisation processes in the near nozzle region of a second generation high pressure-swirl direct injection gasoline fuel injector have been characterised. The Phase Doppler technique has been used to measure the axial and radial droplet velocities and the resultant flow angles of the fuel droplets. Mean estimates based on time bin averaging the data over 20 microsecond time bins have shown that, during the transient formation of the hollow fuel cone there is a distinct high frequency fluctuation in the mean flow angle. Images of the spray cone have confirmed the fluctuations found by the PDA analysis and suggest that the phenomenon is due to waves in the spray cone which can be attributed to the instabilities behind the break up of the conical liquid sheet.

Anglický abstrakt

The fuel break up and atomisation processes in the near nozzle region of a second generation high pressure-swirl direct injection gasoline fuel injector have been characterised. The Phase Doppler technique has been used to measure the axial and radial droplet velocities and the resultant flow angles of the fuel droplets. Mean estimates based on time bin averaging the data over 20 microsecond time bins have shown that, during the transient formation of the hollow fuel cone there is a distinct high frequency fluctuation in the mean flow angle. Images of the spray cone have confirmed the fluctuations found by the PDA analysis and suggest that the phenomenon is due to waves in the spray cone which can be attributed to the instabilities behind the break up of the conical liquid sheet.

BibTex


@inproceedings{BUT15526,
  author="Jan {Jedelský}",
  title="Investigation into Primary Break Up of Conical Liquid Sheets Produced by a Pressure Swirl Gasoline Direct Injector.",
  annote="The fuel break up and atomisation processes in the near nozzle region of a second generation high pressure-swirl direct injection gasoline fuel injector have been characterised. The Phase Doppler technique has been used to measure the axial and radial droplet velocities and the resultant flow angles of the fuel droplets. Mean estimates based on time bin averaging the data over 20 microsecond time bins have shown that, during the transient formation of the hollow fuel cone there is a distinct high frequency fluctuation in the mean flow angle. Images of the spray cone have confirmed the fluctuations found by the PDA analysis and suggest that the phenomenon is due to waves in the spray cone which can be attributed to the instabilities behind the break up of the conical liquid sheet.",
  address="Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans",
  booktitle="Proceedings 20th Annual Conference on Liquid Atomization and Spray Systems",
  chapter="15526",
  institution="Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans",
  year="2005",
  month="january",
  pages="329",
  publisher="Laboratoire de Combustion et Systemes Reactifs, CNRS Orleans",
  type="conference paper"
}