Detail publikace

Statistical analysis of rotary atomization by phase Doppler anemometry

RÁCZ, E. MALÝ, M. CEJPEK, O. JEDELSKÝ, J. JÓZSA, V.

Originální název

Statistical analysis of rotary atomization by phase Doppler anemometry

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Rotary atomization is used in a wide variety of fields, exploiting the external control option of the spray while no high-pressure fluid is needed. Most papers on rotary atomization deal with liquid jet breakup, while external spray characteristics are rarely evaluated; this is performed currently. The water spray was measured by a two-component phase Doppler anemometer. The optical setup requires a special measurement chamber to avoid spray deposition on the optical components. Therefore, the first goal was to find a proper filter that enables the removal of biased droplets by secondary flows. Since most droplets have a similar radial-to-tangential velocity ratio at each measurement point, i.e., scattering around a line, this was the first component of the best filter. The second component was the need for a positive radial velocity component. This filter efficiently removed droplets originating from alternative processes, increasing the R-2 of the line fit. The physical soundness of this filter was checked by evaluating the effect of filtering on the angle of the velocity components of each droplet at a given measurement point. The proposed filter efficiently detected recirculation, a secondary effect of the measurement setup with less regular dataset shapes. Finally, the slope and intercept values of the fitted lines were evaluated and presented. The mean of the former followed the same trend irrespective of the rotational speed and the mass flow rate; it was principally dependent on the radial distance from the atomizer. The intercept showed a regular but less universal behavior.

Klíčová slova

Rotary atomizer; Phase doppler Anemometry; regresion; data processing;

Autoři

RÁCZ, E.; MALÝ, M.; CEJPEK, O.; JEDELSKÝ, J.; JÓZSA, V.

Vydáno

20. 5. 2024

Nakladatel

AIP Publishing

Místo

MELVILLE

ISSN

1070-6631

Periodikum

PHYSICS OF FLUIDS

Ročník

36

Číslo

5

Stát

Spojené státy americké

Strany počet

19

URL

https://pubs.aip.org/aip/pof/article/36/5/053333/3294300/Statistical-analysis-of-rotary-atomization-by

BibTex

@article{BUT188631,
  author="Erika {Rácz} and Milan {Malý} and Ondřej {Cejpek} and Jan {Jedelský} and Viktor {Józsa}",
  title="Statistical analysis of rotary atomization by phase Doppler anemometry",
  journal="PHYSICS OF FLUIDS",
  year="2024",
  volume="36",
  number="5",
  pages="19",
  doi="10.1063/5.0203085",
  issn="1070-6631",
  url="https://pubs.aip.org/aip/pof/article/36/5/053333/3294300/Statistical-analysis-of-rotary-atomization-by"
}