Moving droplets: The measurement of contact lines

Moving droplets: The measurement of contact lines

Poelma, C.
Franken, M.J.Z.
Kim, H.
Westerweel, J.

Mechanical, Maritime and Materials Engineering

Process and Energy

2014-06-24

Contact lines are the locations where a gas, liquid and a solid meet. From everyday experience we know that such contact lines can be mobile, for example in the case of a water droplet sliding over a glass surface. However, the continuum description of the flow towards or away from a contact line implies that the forces diverge as one approaches a moving contact line. This fundamental problem is of relevance to many applications, and in particular to the development and application of immersion lithography, where a liquid droplet is positioned between the lithographic optical head and the substrate that moves under it. This contribution will address experiments dealing with the shape and stability of a moving droplet and experiments that investigate the underlying behaviour of the nanoscale structure of the moving contact line.

contact line dynamics
flow visualization
partially-wetting fluid
Total Internal Reflection Fluorescence
Tomo-PIV
shadowgraphy
micro/nanoscale
precursor film

http://resolver.tudelft.nl/uuid:b3affa8f-eb66-4d44-9b38-e2b764ee1d91

The Visualization Society of Japan

ISFV 16: 16th International Symposium on Flow Visualization, Okinawa, Japan, 24-28 June 2014

Institutional Repository

conference paper

(c) 2014 The Author(s)