Ice accretion and ice shedding on an aero-engine rotating cone

Physics of Fluids, Год журнала: 2025, Номер 37(3)

Опубликована: Март 1, 2025

Ice accretion on the aero-engine rotating cone surface significantly increases intake distortion, potentially leading to engine stall and surge. In addition, ice from of may cause mechanical damage engine; hence, it is great significance study shedding an cone. this study, model based three-dimensional solid modeling established numerically simulate surface, bilinear cohesion zone used analyze shedding. The influence different rotation speeds at mainstream temperature 253.15 K analyzed. results show that with increase in speed, pressure decreased, gradient enhanced clearly. water drop collection coefficient thickness are increased obviously range enlarged slightly. downstream prone

Язык: Английский

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Nanoscale defects and heterogeneous cavitation in water

Journal of Molecular Liquids, Год журнала: 2025, Номер unknown, С. 127797 - 127797

Опубликована: Май 1, 2025

Язык: Английский

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Spray breakup and droplets impacting with model transition

Physics of Fluids, Год журнала: 2025, Номер 37(5)

Опубликована: Май 1, 2025

The droplets' impact on a liquid surface is widespread in daily life and industrial applications. A high-fidelity efficient numerical method necessary for the during spray process. This study introduces novel integrated VOF-to-DPM-to-VOF (Volume of Fluid-to-Discrete Particle Model-to-Volume Fluid, VtDtV) by combining breakup droplet modeling through VTD (VOF-to-DPM) DTV (DPM-to-VOF) approaches, enabling accurate model transition within computational domain achieving precise simulation impacts free large-scale fields. Different models are employed different regions/stages to balance efficiency accuracy. used capture film process, while analyze details impact, DPM serves as bridge transitions over large spaces. Finally, contrast most previous works that primarily focus energy transfer vertical this completes analysis droplets impacting discussing morphology involved both single multiple oblique predicting size cavity. results show prediction formula maximum cavity depth has an error 14.71%, consecutive 4.61%, verifying accuracy model.

Язык: Английский

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Molecular dynamics study of nitrate adsorption from aqueous solutions using activated carbon modified with Fe2O3 nanoparticles: The impact of Fe2O3 nanoparticles

The European Physical Journal Plus, Год журнала: 2025, Номер 140(6)

Опубликована: Июнь 4, 2025

Язык: Английский

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