Disk-ring deposition in drying a sessile nanofluid droplet with enhanced marangoni effect and particle surface adsorption

• Main Authors: Ren, Junheng, Crivoi, Alexandru, Duan, Fei
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Mechanical engineering; Interface Capture; Coffee
• Online Access: https://hdl.handle.net/10356/160534
• Institution: Nanyang Technological University

The present study is to explore the central particle deposition from drying a sessile nanofluid droplet experimentally and theoretically. Normally, a pinned colloidal droplet dries into a coffee-ring pattern as a result of moving the particles to a three-phase line by the radial direction capillary...