Obstruction of spreading droplets on a flat surface by non-deformable objects
File(s)
Author(s)
Horwich, Marcus
Hardalupas, Ioannis
Type
Conference Paper
Abstract
Droplet impact onto a solid surface in the vicinity of a sessile solid cylinder is investigated. Water droplets impacted an acrylic surface with Weber numbers in the range of 406 – 616. The radius of the cylinder (0.52, 0.28 and 0.23 mm, ratios to droplet radius of 0.12 – 0.39) and the distance between the droplet impact point and the cylinder (1.75 – 10.57 mm, ratios to droplet
radius of 1.26 – 5.53) were varied. Two high speed cameras captured the droplet temporal evolution simultaneously from two views and image analysis extracted the maximum spreading radius, number of corrugations and behaviour of ligament length along the rim at the circumference of the lamella. We observe a dry ‘V-shaped’ area behind the cylinder and discuss the conditions under which the lamella is able to re-join around the rear of the cylinder.
radius of 1.26 – 5.53) were varied. Two high speed cameras captured the droplet temporal evolution simultaneously from two views and image analysis extracted the maximum spreading radius, number of corrugations and behaviour of ligament length along the rim at the circumference of the lamella. We observe a dry ‘V-shaped’ area behind the cylinder and discuss the conditions under which the lamella is able to re-join around the rear of the cylinder.
Date Acceptance
2022-11-11
Citation
Proceedings of the 11th International Conference on Multiphase Flow (ICMF 2023)
Journal / Book Title
Proceedings of the 11th International Conference on Multiphase Flow (ICMF 2023)
Copyright Statement
This paper is embargoed until publication.
Source
11th International Conference on Multiphase Flow (ICMF 2023)
Publication Status
Accepted
Start Date
2023-04-02
Finish Date
2023-04-07
Coverage Spatial
Kobe, Japan
Rights Embargo Date
10000-01-01