2013
DOI: 10.1155/2013/796081
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Investigation of Vortex Clouds and Droplet Sizes in Heated Water Spray Patterns Generated by Axisymmetric Full Cone Nozzles

Abstract: The hot water sprays are an important part of many industrial processes, where the detailed knowledge of physical phenomena involved in jet transportation, interaction, secondary breakup, evaporation, and coalescence of droplets is important to reach more efficient processes. The objective of the work was to study the water spray jet breakup dynamics, vortex cloud formation, and droplet size distribution under varying temperature and load pressure. Using a high speed camera, the spray patterns generated by axi… Show more

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Cited by 11 publications
(11 citation statements)
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“…Firstly, at low Reynolds numbers, large sized droplets come out according to the Raleigh mechanism of jet breakup. Secondly, at intermediate Reynolds numbers, the breakup is achieved by jet oscillations with respect to the jet axis until the jet disintegrates into ligaments and then small droplet [ 18 ]. The second regime produces a wide range of droplet sizes.…”
Section: Resultsmentioning
confidence: 99%
“…Firstly, at low Reynolds numbers, large sized droplets come out according to the Raleigh mechanism of jet breakup. Secondly, at intermediate Reynolds numbers, the breakup is achieved by jet oscillations with respect to the jet axis until the jet disintegrates into ligaments and then small droplet [ 18 ]. The second regime produces a wide range of droplet sizes.…”
Section: Resultsmentioning
confidence: 99%
“…This nozzle is quite different compared to spiral channel nozzles [45] or spiral flow nozzles [46,47] with which it can be confused. Generally, a lot of works have been carried out on nozzles creating a full-cone spray in various application fields [48][49][50][51][52][53][54][55][56][57][58]. Conversely, the amount of works on nozzles with a spiral geometry is quite limited despite the fact that they possess several very interesting features [59]:…”
Section: Introductionmentioning
confidence: 99%
“…They concluded that the temperature variation was diffusion dominated during the early stages because of the stagnant droplet impact velocity. Naz et al (2013) had the objective of analysing the dynamics of water spray split, swirl formation, fragment size dispensation in situations where temperature and pressure vary continuously. They found that injection of thermal energy into the spray is the most important spray boundary condition.…”
Section: Introductionmentioning
confidence: 99%