Coalescing and break-up of viscous drops with surface tension through the Smoothed Particle Hydrodynamics

被引：0

作者：

Antuono, M. ^{[1
]}

Marrone, S. ^{[1
]}

Colagrossi, A. ^{[1
,2
]}

机构：

[1] Natl Res Council CNR, Inst Marine Engn INM, Rome, Italy

[2] Ecole Cent Nantes, ECN CNRS, LHEEA Lab, Nantes, France

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2025年 / 442卷

关键词：

Surface tension; Smoothed Particle Hydrodynamics; Droplet coalescence and breakup; Energy balance; Free-surface flows; SPH; COLLISION; FLOWS; SEPARATION; SIMULATION;

D O I：

10.1016/j.cma.2025.118014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study on the phenomena of drop coalescence and break-up is tackled for viscous flows with surface tension. The proposed analysis focuses on single-phase problems and is carried on by using the Smoothed Particle Hydrodynamics (SPH). This scheme allows for a straightforward treatment of the free surface and for an accurate description of the energy balance during the most delicate stages of coalescence and break-up. This latter aspect, combined with theoretical relations on the surface-tension energy, allowed for an in-depth characterization of the above phenomena in terms of energy evolution. A number of numerical test cases are considered in order to support and illustrate the main findings of the proposed work.

引用

页数：23