Data for "Dynamics of a thin film driven by a moving pressure source"

Name: Data for "Dynamics of a thin film driven by a moving pressure source"
Published: 2018-01-01T00:00:00Z
License: https://ora.ox.ac.uk/terms_of_use

Lunz, D; Howell, P

Documentation:: Data for plots (and movies in supplementary material) in csv format.

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APA Style

Lunz, D., & Howell, P. (2018). Data for "Dynamics of a thin film driven by a moving pressure source". University of Oxford.

MLA Style

Lunz, D., and P. Howell. Data for "Dynamics of a Thin Film Driven by a Moving Pressure Source". University of Oxford, 2018.

Chicago Style

Lunz, D, and P Howell. 2018. “Data for ‘Dynamics of a Thin Film Driven by a Moving Pressure Source.’” University of Oxford.
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Files:: prf.zip

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Authors/Creators

+ Lunz, D More by this author/creator

Department:: University of Oxford
Role:: Creator

+ Howell, P More by this author/creator

Department:: University of Oxford
Role:: Creator, Creator

+ Engineering and Physical Sciences Research Council More from this funder

Funder identifier:: https://ror.org/0439y7842
Funding agency for:: Lunz, D
Grant:: EP/L015803/1

Publisher:: University of Oxford
Publication date:: 2018
DOI:: 10.5287/bodleian:wx1PG9J4P

Pubs id:: 1480059
UUID:: uuid:d4e9d979-f884-4975-b093-16ac6d4819f6
Local pid:: pubs:1480059
Deposit date:: 2018-10-26

Related item:: ORA link: Dynamics of a thin film driven by a moving pressure source
External link:: Dynamics of a thin film driven by a moving pressure source
Description:: Motivated by the liquid metal coating on a divertor in a tokamak, we investigate the flow of a thin film of incompressible fluid on an inclined substrate subjected to a localized external pressure that oscillates parallel to the substrate. When the movement of the pressure occurs on a timescale significantly longer than the characteristic time for the thin film to equilibrate, the system is quasisteady. In the opposite extreme, where the pressure oscillates much faster than the response time of the free surface, a multiple-scale analysis shows that the free surface is exposed to an effective time-averaged pressure profile. Thus the oscillations can act to spread the momentum load of the applied pressure, resulting in smaller deformations of the liquid film. In the intermediate case, where the intrinsic and external timescales are similar, we find that there exists a critical speed of oscillations which maximizes the free-surface deflection and results in a possibly dangerous thinning of the film. Further local maxima in the free-surface deflection are caused by a fascinating nonlocal wave interaction mechanism.

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