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  2. Spray (liquid drop) - Wikipedia

    en.wikipedia.org/wiki/Spray_(liquid_drop)

    The parameter indicates the uniformity of the drop size distribution. The closer this number is to 1, the more uniform the spray will be (i.e. tightest distribution, smallest variance from the maximum drop size, Dmax, to the minimum drop size, Dmin ). RSF provides a practical means for comparing various drop size distributions.

  3. Spray nozzle - Wikipedia

    en.wikipedia.org/wiki/Spray_nozzle

    Many applications use two-fluid nozzles to achieve a controlled small drop size over a range of operation. Each nozzle has a performance curve, and the liquid and gas flow rates determine the drop size. [5] Excessive drop size can lead to catastrophic equipment failure or may have an adverse effect on the process or product.

  4. Ultrasonic nozzle - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_Nozzle

    The non-clogging nature of ultrasonic nozzles, the small and uniform droplet size created by them, and the fact that the spray plume can be shaped by tightly controlled air shaping devices makeS the application quite successful in wave soldering processes. The viscosity of nearly all fluxes on the market fit well within the capabilities of the ...

  5. Ultra-low volume - Wikipedia

    en.wikipedia.org/wiki/Ultra-low_volume

    The size of the droplet is very important as each application has an optimal droplet size. The optimum droplet sizes are between 5 and 30 μm for flying insects, 20 to 40 μm for leaf nematodes and 30 to 50 μm for fungi. [4] Low volume refers to the low volume of carrier fluid that is required with these types of machines.

  6. Droplet vaporization - Wikipedia

    en.wikipedia.org/wiki/Droplet_vaporization

    The vaporizing droplet (droplet vaporization) problem is a challenging issue in fluid dynamics. It is part of many engineering situations involving the transport and computation of sprays: fuel injection, spray painting, aerosol spray, flashing releases… In most of these engineering situations there is a relative motion between the droplet ...

  7. Drop (liquid) - Wikipedia

    en.wikipedia.org/wiki/Drop_(liquid)

    The term droplet is a diminutive form of 'drop' – and as a guide is typically used for liquid particles of less than 500 μm diameter. In spray application , droplets are usually described by their perceived size (i.e., diameter) whereas the dose (or number of infective particles in the case of biopesticides ) is a function of their volume.

  8. Spray tower - Wikipedia

    en.wikipedia.org/wiki/Spray_tower

    Therefore, spray towers use nozzles that produce droplets that are usually 500–1000 μm in diameter. Although small in size, these droplets are large compared to those created in venturi scrubbers that are 10–50 μm in size. The gas velocity is kept low, from 0.3 to 1.2 m/s (1–4 ft/s), to prevent excess droplets from being carried out of ...

  9. Acoustic droplet ejection - Wikipedia

    en.wikipedia.org/wiki/Acoustic_droplet_ejection

    The diameter of the droplet scales inversely with the frequency of the acoustic energy—higher frequencies produce smaller droplets. [3] [4] Unlike other liquid transfer devices, no pipette tips, pin tools, or nozzles touch the source liquid or destination surfaces. Liquid transfer methods that rely on droplet formation through an orifice, e.g ...