Steady solutions of inertial film flow along strongly undulated substrates
Steady flow of a liquid film along sinusoidal, steeply corrugated walls is investigated by finite-element simulation of the 2D Navier-Stokes equations. Resonance between the wall and capillary-gravity waves travelling against the flow defines a critical Re and separates the flow into a subcritical a...
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| Veröffentlicht in: | Physics of fluids (1994) 2011-05, Vol.23 (5), p.052103-052103-13 |
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| container_end_page | 052103-13 |
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| container_issue | 5 |
| container_start_page | 052103 |
| container_title | Physics of fluids (1994) |
| container_volume | 23 |
| creator | Nguyen, P.-K. Bontozoglou, V. |
| description | Steady flow of a liquid film along sinusoidal, steeply corrugated walls is investigated by finite-element simulation of the 2D Navier-Stokes equations. Resonance between the wall and capillary-gravity waves travelling against the flow defines a critical
Re
and separates the flow into a subcritical and a supercritical regime. Steep corrugations trigger extensive flow separation in both regimes. However, the separation characteristics-most notably the limiting behavior for very thin and very thick films-vary because of the different significance of capillary forces in the two regimes. For very steep corrugations, two intersecting solution branches co-exist. The present computational predictions are compared favorably with independent experimental observations. |
| doi_str_mv | 10.1063/1.3591154 |
| format | Article |
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Re
and separates the flow into a subcritical and a supercritical regime. Steep corrugations trigger extensive flow separation in both regimes. However, the separation characteristics-most notably the limiting behavior for very thin and very thick films-vary because of the different significance of capillary forces in the two regimes. For very steep corrugations, two intersecting solution branches co-exist. The present computational predictions are compared favorably with independent experimental observations.</description><identifier>ISSN: 1070-6631</identifier><identifier>EISSN: 1089-7666</identifier><identifier>DOI: 10.1063/1.3591154</identifier><identifier>CODEN: PHFLE6</identifier><language>eng</language><publisher>Melville, NY: American Institute of Physics</publisher><subject>Exact sciences and technology ; Fluid dynamics ; Fundamental areas of phenomenology (including applications) ; Hydrodynamic waves ; Physics</subject><ispartof>Physics of fluids (1994), 2011-05, Vol.23 (5), p.052103-052103-13</ispartof><rights>2011 American Institute of Physics</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c313t-cf49c1cebedfb0f09d4b86d4c33c5e22f1ed3ec2f7d02b13df3627ab03e3dc253</citedby><cites>FETCH-LOGICAL-c313t-cf49c1cebedfb0f09d4b86d4c33c5e22f1ed3ec2f7d02b13df3627ab03e3dc253</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,791,1554,4498,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24257996$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Nguyen, P.-K.</creatorcontrib><creatorcontrib>Bontozoglou, V.</creatorcontrib><title>Steady solutions of inertial film flow along strongly undulated substrates</title><title>Physics of fluids (1994)</title><description>Steady flow of a liquid film along sinusoidal, steeply corrugated walls is investigated by finite-element simulation of the 2D Navier-Stokes equations. Resonance between the wall and capillary-gravity waves travelling against the flow defines a critical
Re
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Re
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| fulltext | fulltext |
| identifier | ISSN: 1070-6631 |
| ispartof | Physics of fluids (1994), 2011-05, Vol.23 (5), p.052103-052103-13 |
| issn | 1070-6631 1089-7666 |
| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) Hydrodynamic waves Physics |
| title | Steady solutions of inertial film flow along strongly undulated substrates |
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