5/9/2023 0 Comments Swirl design![]() Quadratic formula for determining the drop size in pressure-atomized sprays with and without swirl,” Phys. Spray characteristics of pressure-swirl nozzles at different nozzle diameters,” Appl. , Google Scholar CrossrefĮffect of swirl chamber length on the atomization characteristics of a pressure-swirl nozzle,” Atomization SpraysĢ7(10), 859 (2017). , Google Scholar CrossrefĮffect of geometric parameters on spray characteristics of pressure swirl atomizers,” Int. , Google Scholar CrossrefĪn experimental investigation of swirl atomizer sprays,” Heat Mass TransferĤ5(1), 11– 22 (2008). Visualization of internal flow and the effect of orifice geometry on the characteristics of spray and flow field in pressure-swirl atomizers,” Appl. , Google Scholar CrossrefĪn experimental investigation on the effect of various swirl atomizer orifice geometries on the air core diameter,” in Applied Mechanics and Materials ( ![]() The effect of orifice shape and the injection pressure on enhancement of the atomization process for pressure-swirl atomizers,” Crop Prot.Ĩ2, 65– 74 (2016). Response of inner flow and spray characteristics of a pressure swirl injector to pressure oscillation in supply system,” Acta Astronaut.ġ54, 82– 91 (2019). , Google Scholar CrossrefĮxperiment on liquid sheet breakup process of pressure swirl injector,” J. Theoretical and experimental study of the dynamics of a liquid swirl injector,” J. , Google Scholar Crossrefĭesign and construction of the pressure swirl nozzle and experimental investigation of spray characteristics,” Tehnički Glas.ġ3(3), 204– 212 (2019). , Google Scholar Crossrefĭevelopment behavior of vaporizing sprays from a high-pressure swirl injector using exciplex fluorescence method,” KSME Int. Viscosity and surface tension effects in pressure swirl atomization,” Atomization Spraysĥ(3), 261 (1995). , Google Scholar Crossrefįilm thickness measurements in a simplex swirl atomizer,” J. Google ScholarĬharacteristics of liquid film and spray injected from swirl coaxial injector,” J. Quality of fuel atomization from small pressure-swirl atomizers,” B.Sc thesis (īrno University of Technology, 2014). Improving the droplet prediction model in pressure-swirl injectors based on the study of the dynamics of the spraying phases,” in Fifteenth Annual (International) Conference on Mechanical Engineering, Iran, Tehran (Īmirkabir University of Technology, 2007) (in Persian), Paper No. Eng.Ĭentrifugal injector droplet size over a wide range of dispersant properties,” Fluid Dyn.ĥ(3), 492– 499 (1973). The atomization of water by swirl spray pressure nozzles,” Trans. ![]() Google ScholarĬorrelations for prediction of discharge rate, core angle and air core diameter of swirl spray atomizers,” Int. Quality of Fuel Atomization From Small Pressure-Swirl Atomizers” (2014). Orzechowski, Liquid Atomization, Combustion: An International Series ( It is important to note that the numerical results are in good agreement with the experimental data. The results also showed that increasing the length of the orifice marginally affected the properties of the spray while significantly reducing the spray cone angle. At the constant mass flow rate, as the spiral path cross-section, the length of the swirl chamber and orifice diameter increase, the fluid film thickness and average diameter of droplets increase while the spray cone angle reduces.įurther, increasing the number of spiral paths causes a wider spray cone angle, higher discharge coefficient, larger fluid film thickness, and larger droplet diameter. It is observed that similar to the pressure-swirl atomizer with tangential input, the pressure-swirl atomizer with a spiral path has a conical hollow spray. While the drainage coefficient remains constant, the droplet diameter decreases as the pressure increases. This increase initially occurs with a higher slope and then the slope is toned down. Experimental results showed that as the pressure increases, the spray cone angle increases. This study applies experimental and computational methods to provide a better understanding of flow development in this type of atomizer at the design point and outside the design point. Studies on pressure-swirl atomizers have mainly focused on pressure-swirl atomizers with tangential input while there are limited studies on pressure-swirl atomizers with a spiral path.
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