Numerical simulation of the interaction of a single liquid droplet with a solid surface using the volume of fluid method

IF 3.4 2区物理与天体物理 Q1 ENGINEERING, AEROSPACE

Acta Astronautica Pub Date : 2025-09-11 DOI:10.1016/j.actaastro.2025.09.025

B.S. Shalabayeva , K.N. Volkov , L.V. Markova

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引用次数: 0

Abstract

The study of droplet-surface interaction is of great importance in the context of ensuring the safety and reliability of space flights. In particular, controlled droplet-surface interaction helps prevent the formation of free-flying droplets and ensures the supply of fuel to the engine. To simulate the interaction of a single liquid droplet with a solid surface, multiphase hydrodynamics methods are used based on the Volume of Fluid (VOF) model to track the liquid-gas interface, as well as adaptive meshes to improve the accuracy of calculations near the free surface. The mathematical model takes into account the effects of viscosity, surface tension, wetting (contact angle) and capillary forces. Specific attention is paid to the influence of the contact angle on accuracy of results of numerical simulation and droplet spreading factor. Numerical calculations are carried out for various characteristic parameters of the problem. The results of numerical modeling are compared with physical experiment data and the available correlation dependencies for the droplet spreading factor over the obstacle.

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用流体体积法对单个液滴与固体表面相互作用的数值模拟

液滴-表面相互作用的研究对于保证航天飞行的安全可靠具有重要意义。特别是，控制液滴与表面的相互作用有助于防止自由飞行的液滴的形成，并确保向发动机提供燃料。为了模拟单个液滴与固体表面的相互作用，采用了基于流体体积（VOF）模型的多相流体力学方法来跟踪液气界面，并采用自适应网格来提高自由表面附近的计算精度。数学模型考虑了粘度、表面张力、润湿（接触角）和毛细力的影响。重点研究了接触角对数值模拟结果精度和液滴扩散系数的影响。对该问题的各种特征参数进行了数值计算。将数值模拟结果与物理实验数据以及液滴在障碍物上扩散系数的相关依赖关系进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Astronautica 工程技术-工程：宇航

CiteScore

7.20

自引率

22.90%

发文量

599

审稿时长

53 days

期刊介绍： Acta Astronautica is sponsored by the International Academy of Astronautics. Content is based on original contributions in all fields of basic, engineering, life and social space sciences and of space technology related to: The peaceful scientific exploration of space, Its exploitation for human welfare and progress, Conception, design, development and operation of space-borne and Earth-based systems, In addition to regular issues, the journal publishes selected proceedings of the annual International Astronautical Congress (IAC), transactions of the IAA and special issues on topics of current interest, such as microgravity, space station technology, geostationary orbits, and space economics. Other subject areas include satellite technology, space transportation and communications, space energy, power and propulsion, astrodynamics, extraterrestrial intelligence and Earth observations.