Obstruction of spreading droplets by non-deformable objects
File(s)
Author(s)
Horwich, Marcus
Hardalupas, Ioannis
Type
Conference Paper
Abstract
In this study, we investigate the impact of a droplet onto a solid surface in the vicinity of a sessile solid cylinder. Water droplets impacted an acrylic surface with Weber numbers in the range of 406 – 616. The radius of the cylinder was varied (0.52, 0.28 and 0.23 mm, leading to ratios to the droplet radius of 0.12 – 0.39) as well as the distance between the impact point
and the cylinder (1.75 – 10.57 mm leading to ratios to the droplet radius of 1.26 – 5.53). High speed cameras were used to capture the droplet temporal evolution and image analysis software used to extract features such as maximum spreading radius, numbers of corrugations and the 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.
and the cylinder (1.75 – 10.57 mm leading to ratios to the droplet radius of 1.26 – 5.53). High speed cameras were used to capture the droplet temporal evolution and image analysis software used to extract features such as maximum spreading radius, numbers of corrugations and the 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 Issued
2021-08-29
Date Acceptance
2021-07-29
Citation
Proceedings of the 15th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS 2021), 2021
Journal / Book Title
Proceedings of the 15th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS 2021)
Copyright Statement
© 2021 The Author(s).
Source
15th Triennial International Conference on Liquid Atomization and Spray Systems (ICLASS 2021)
Publication Status
Published
Start Date
2021-08-30
Finish Date
2021-09-02
Coverage Spatial
Edinburgh, UK