Modeling of Generation of Uniform Metal Droplet During Drop-On-Demand Spray Forming
In order to predict the generation of uniform molten aluminum droplets by a pulse argon gas, the level set method is used to simulate the flow field of two-phase flow consisting of liquid metal and surrounding gas. The case of a 500 m diameter orifice and a 10 kPa pulse argon gas during 5 ms is studied in a two dimensional axial symmetry under a fixed structured grid composed of quadrilateral elements. In this case, the influence of the duration of pulse argon gas on the initial velocity and volume of droplets generated is analyzed in detail. The simulation results show that the initial velocity distribution in generated droplets is non uniform, which can be used to explain the resultant oscillation of droplets during falling. As durations of pressure peak of pulse argon gas are prolonged, the diameter of droplets generated increase. This research will further the understanding of generation of uniform molten metal droplet on drop-on-demand mode.
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Document Type: Research Article
Publication date: September 1, 2012
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- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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