Work

A two‐way coupling approach for simulating bouncing droplets

Year: 2024

Type: article

Abstract: This article presents a two‐way coupling approach to simulate bouncing droplet phenomena by incorporating the lubricated thin aerodynamic gap between fluid volumes. At the heart of our framework lies a cut‐cell representation of the thin air film between colliding liquid fluid volumes. The air pressures within the thin film, modeled using a reduced fluid model based on the lubrication theory, are coupled with the volumetric liquid pressures by the gradient across the liquid–air interfaces and solved in a monolithic two‐way coupling system. Our method can accurately solve liquid–liquid interaction with air films without adaptive grid refinements, enabling accurate simulation of many novel surface‐tension‐driven phenomena such as droplet collisions, bouncing droplets, and promenading pairs.

Source: International Journal for Numerical Methods in Engineering

DOI: 10.1002/nme.7592

Authors: Hui Wang, Yuwei Xiao, Yankai Mao, Shiying Xiong, Xubo Yang, Bo Zhu

Institutions: Shanghai Jiao Tong University, Zhejiang University, Georgia Institute of Technology

Language: English

Topic: Fluid Dynamics and Heat Transfer

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,250

Funders: National Science Foundation, National Natural Science Foundation of China