Published 12 issues per year
ISSN Print: 1044-5110
ISSN Online: 1936-2684
Indexed in
MODELING KINETIC ENERGY DISSIPATION OF BOUNCING DROPLETS FOR LAGRANGIAN SIMULATION OF IMPINGING SPRAYS UNDER HIGH AMBIENT PRESSURES
ABSTRACT
Binary droplet collision under high ambient pressures was investigated numerically by using the front tracking method. The particular interest of the investigation is to predict the kinetic energy dissipation of droplet bouncing, which tends to be the dominant collision outcome in the impinging sprays under high ambient pressures. A practically useful model was proposed based on the predicted kinetic energy dissipation and implemented in the KIVA-3V computer program code for the Lagrangian simulation of the free and impinging spray experiments under high ambient pressures. The results show that the model can make qualitatively satisfactory predictions to the spray shape, the tip penetration length, and the Sauter mean diameter.
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Lu Yi, Zhao Changlu, Zhang Zhenyu, Zuo Zhe, Lv Weilong, Numerical simulation of impinging spray characteristics under high ambient pressures with an improved droplet collision model, Fuel, 251, 2019. Crossref
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Non-monotonic viscous dissipation of bouncing droplets undergoing off-center collision, Physics of Fluids, 31, 5, 2019. Crossref
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Vortex-dynamical implications of nonmonotonic viscous dissipation of off-center droplet bouncing, Physics of Fluids, 32, 3, 2020. Crossref
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He Chengming, Zhang Peng, Nonaxisymmetric flow characteristics in head-on collision of spinning droplets, Physical Review Fluids, 5, 11, 2020. Crossref
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Wu Hao, Zhang Fujun, Zhang Zhenyu, Droplet breakup and coalescence of an internal-mixing twin-fluid spray, Physics of Fluids, 33, 1, 2021. Crossref
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Wang Ning, Zhang Jiqing, Zhang Zhenyu, Experimental and Numerical Investigation on the Dynamics of Impacting Droplet Spreading at Small Weber Numbers, Energies, 15, 21, 2022. Crossref