Analysis of droplet size distribution and selection of spray parameters based on the fractal theory. Journal of Cleaner Production 2022, 371 , 133315. https://doi.org/10.1016/j.jclepro.2022.133315

Oct 15, 2022 · Using multiple parameters to represent the droplet size distribution (DSD) always leads to various outcomes that make it hard to decide. The research combined theoretical derivation with experiments to study the random fractal of the DSD.

Jan 6, 2021 · Four different methods for measuring droplet size distributions are evaluated: the Image Analysis VisiSizer technique, a stroboscopic imaging method developed in-house, phase Doppler particle analysis (PDPA), and laser diffraction (Malvern Spraytec).

Jan 20, 2012 · Methods for constructing droplet size distributions and droplet velocity profiles are examined as a basis for the Eulerian spray model proposed in Beck and Watkins (2002,2003) [5], [6]. Within the spray model, both distributions must be calculated at every control volume at every time-step where the spray is present and valid distributions must ...

Jul 20, 2018 · An experimental investigation of drop size in sprays identifies the underlying mechanisms that determine the size distribution, which should allow spray designers to predict droplet characteristics from first principles.

We investigate the different parameters that determine the characteristic drop size in the breakup of sheets. We vary both the spraying parameters, such as the pressure and geometry of the nozzle, and the fluid parameters, such as viscosity and surface tension.

Each spray provides a range of drop sizes; this range is referred to as a drop size distribution. A simple explanation of this process is the breakup of a liquid as it emerges from an orifice. Various spray nozzles have different shaped orifices and produce various spray patterns such as hollow cone, full cone, flat spray and others.

Four different methods for measuring droplet size distributions are evaluated: the Image Analysis VisiSizer technique, a stroboscopic imaging method developed in-house, phase Doppler particle analysis (PDPA), and laser diffraction (Malvern Spraytec).

The present work includes a theoretical analysis of the evolution of water spray, iven an initial measured droplet distribution, characterised by a modified Rink distribution function l8|, and a comparison of the predicted values with the measured ones at three different downstream locations along the spray axis.

Jul 29, 2022 · Herein, we introduce the most widely used spraying methods and explain their spraying principles, fields of use, and appropriate operating environments. We focus on the droplet size aspect. This review is likely to be useful in the design and development of …