dc.creator | Vlachogiannis, M. | en |
dc.creator | Bontozoglou, V. | en |
dc.date.accessioned | 2015-11-23T10:53:42Z | |
dc.date.available | 2015-11-23T10:53:42Z | |
dc.date.issued | 2002 | |
dc.identifier | 10.1017/s0022112001007637 | |
dc.identifier.issn | 0022-1120 | |
dc.identifier.uri | http://hdl.handle.net/11615/34495 | |
dc.description.abstract | Experimental results are reported on the structure of gravity-driven film flow along an inclined periodic wall with rectangular corrugations. A fluorescence imaging method is used to capture the evolution of film height in space and time with accuracy of a few microns. The steady flow is found to exhibit a statically deformed free surface, as predicted by previous asymptotic and numerical studies. Though usually unstable, its characteristics determine much of the subsequent non-stationary dynamics. Travelling disturbances are observed to evolve into solitary multi-peaked humps, and pronounced differences from the respective phenomena along a flat wall are noted. Finally, a remarkable stabilization of the flow at high Reynolds numbers is documented, which proceeds through the development of a three-dimensional flow structure and leads to a temporary decrease in film thickness and recession of solitary waves. | en |
dc.source | Journal of Fluid Mechanics | en |
dc.source.uri | <Go to ISI>://WOS:000175354500005 | |
dc.subject | SOLITARY WAVE DYNAMICS | en |
dc.subject | FALLING FILM | en |
dc.subject | LIQUID-FILM | en |
dc.subject | INSTABILITIES | en |
dc.subject | SURFACE | en |
dc.subject | INCLINE | en |
dc.subject | Mechanics | en |
dc.subject | Physics, Fluids & Plasmas | en |
dc.title | Experiments on laminar film flow along a periodic wall | en |
dc.type | journalArticle | en |