Erscheint 12 Ausgaben pro Jahr
ISSN Druckformat: 1044-5110
ISSN Online: 1936-2684
Indexed in
PHASE DOPPLER INTERFEROMETRY VOLUME FLUX SENSITIVITY TO PARAMETRIC SETTINGS AND DROPLET TRAJECTORY
ABSTRAKT
Characterization of the volume, or mass, flux distribution for a spray is a first-order determinant for evaluating spray performance. Phase Doppler interferometry has been well established as a means for accurately and reliably measuring drop size and velocity distributions in sprays. The effect of slit aperture width, high voltage gain, and receiver lens focal length on drop size, velocity, and number density is investigated and found to have an optimal settings range; a discussion of the necessary considerations for optimization of these settings is provided. Of particular interest in the current findings is the existence of a large parametric range over which measurement of drop size, velocity, and number density is insensitive to these settings. Additionally, experimental results of volume flux across a spray pattern were acquired using both mechanical patternation and phase Doppler interferometry (PDI) techniques. Through controlled testing methods, an Artium Technologies PDI system, which incorporates the AIMS auto-setup signal processing software, was shown to very accurately determine the local volume flux for a spray nozzle across the spray pattern major axis. Of particular focus in the present investigation is accurate volume flux measurement at large droplet trajectory angles. A common issue with probe volume measurement has been explained and corrected. Finally, local volume flux measurement comparison agreements of 97% were realized between mechanical patternation and the PDI.
-
Vesely P.W., Schick R.J., Shrimpton J.S., Mashayek F., Energy efficient primary atomization of viscous food oils using an electrostatic method, Journal of Food Engineering, 237, 2018. Crossref
-
Leask Scott B., Li Alice K., McDonell Vincent G., Samuelsen Scott, Preliminary Development of a Measurement Reference Using a Research Simplex Atomizer, Journal of Fluids Engineering, 141, 12, 2019. Crossref
-
Hinterbichler H., Steiner H., Brenn G., Self-similar pressure-atomized sprays, Journal of Fluid Mechanics, 889, 2020. Crossref
-
Post Scott, Effects of photomultiplier tube voltage setting on phase-Doppler measurements, Journal of the Royal Society of New Zealand, 51, 2, 2021. Crossref