Moving droplets: The measurement of contact lines

C Poelma, MJZ Franken, H Kim, J Westerweel

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific


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.
Original languageEnglish
Title of host publicationProceedings 16th International Symposium on Flow Visualization
Subtitle of host publicationISFV 16
EditorsK Okamoto, J Sakakibara
PublisherThe Visualization Society of Japan
Number of pages9
Publication statusPublished - 2015
EventISFV 16, Okinawa, Japan -
Duration: 24 Jun 201428 Jun 2014


ConferenceISFV 16, Okinawa, Japan

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