Publication detail

Droplet dynamics in sprays generated by four different twin-fluid atomizers

ZAREMBA, M. MALÝ, M. MLKVIK, M. JEDELSKÝ, J. JÍCHA, M.

Original Title

Droplet dynamics in sprays generated by four different twin-fluid atomizers

English Title

Droplet dynamics in sprays generated by four different twin-fluid atomizers

Type

conference paper

Language

en

Original Abstract

The aim of this paper is to examine droplet motion with respect to the mechanism of the liquid breakup for four twin-fluid atomizers. A high-speed camera was used to evaluate the primary breakup. Time-dependent data of droplets in the spray were acquired by means of a phase-Doppler analyser (PDA). It is shown that there are demonstrable differences in droplet dynamics amongst all the atomizers. Moreover, the influence of the primary breakup on the dynamics of the spray is discussed in terms of the velocity fluctuations and the turbulence intensity. A correlation of the axial and radial velocity shows unexpected behaviour that was attributed to the mechanism of liquid breakup. Presented results also point to the interaction of the large droplets with the air.

English abstract

The aim of this paper is to examine droplet motion with respect to the mechanism of the liquid breakup for four twin-fluid atomizers. A high-speed camera was used to evaluate the primary breakup. Time-dependent data of droplets in the spray were acquired by means of a phase-Doppler analyser (PDA). It is shown that there are demonstrable differences in droplet dynamics amongst all the atomizers. Moreover, the influence of the primary breakup on the dynamics of the spray is discussed in terms of the velocity fluctuations and the turbulence intensity. A correlation of the axial and radial velocity shows unexpected behaviour that was attributed to the mechanism of liquid breakup. Presented results also point to the interaction of the large droplets with the air.

Keywords

Droplet dynamics; primary breakup; phase Doppler analyser

RIV year

2015

Released

15.09.2015

Publisher

Begel House Inc.

Location

Sarajevo, Bosna and Herzegovina

ISBN

978-1-56700-427-4

Book

Turbulence, Heat and Mass Transfer 8

Pages from

649

Pages to

652

Pages count

942

Documents

BibTex


@inproceedings{BUT116808,
  author="Matouš {Zaremba} and Milan {Malý} and Marek {Mlkvik} and Jan {Jedelský} and Miroslav {Jícha}",
  title="Droplet dynamics in sprays generated by four different twin-fluid atomizers",
  annote="The aim of this paper is to examine droplet motion with respect to the mechanism of the liquid breakup for four twin-fluid atomizers. A high-speed camera was used to evaluate the primary breakup. Time-dependent data of droplets in the spray were acquired by means of a phase-Doppler analyser (PDA). It is shown that there are demonstrable differences in droplet dynamics amongst all the atomizers. Moreover, the influence of the primary breakup on the dynamics of the spray is discussed in terms of the velocity fluctuations and the turbulence intensity. A correlation of the axial and radial velocity shows unexpected behaviour that was attributed to the mechanism of liquid breakup. Presented results also point to the interaction of the large droplets with the air.",
  address="Begel House Inc.",
  booktitle="Turbulence, Heat and Mass Transfer 8",
  chapter="116808",
  howpublished="print",
  institution="Begel House Inc.",
  number="1",
  year="2015",
  month="september",
  pages="649--652",
  publisher="Begel House Inc.",
  type="conference paper"
}