Body-rock or lift-off in flow

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dc.contributor.authorSmith FT
dc.contributor.authorWilson PL
dc.date.accessioned2018-12-10T00:20:03Z
dc.date.available2018-12-10T00:20:03Z
dc.date.issued2013en
dc.date.updated2017-11-24T05:34:14Z
dc.description.abstractConditions are investigated under which a body lying at rest or rocking on a solid horizontal surface can be removed from the surface by hydrodynamic forces or instead continues rocking. The investigation is motivated by recent observations on Martian dust movement as well as other small-and large-scale applications. The nonlinear theory of fluid-body interaction here has unsteady motion of an inviscid fluid interacting with a moving thin body. Various shapes of body are addressed together with a range of initial conditions. The relevant parameter space is found to be subtle as evolution and shape play substantial roles coupled with scaled mass and gravity effects. Lift-off of the body from the surface generally cannot occur without fluid flow but it can occur either immediately or within a finite time once the fluid flow starts up: parameters for this are found and comparisons are made with Martian observations.en
dc.identifier.doihttps://doi.org/10.1017/jfm.2013.464
dc.identifier.issn0022-1120
dc.identifier.issn1469-7645
dc.identifier.urihttp://hdl.handle.net/10092/16317
dc.languageEnglish
dc.language.isoen
dc.publisherCAMBRIDGE UNIV PRESSen
dc.subjectScience & Technologyen
dc.subjectTechnologyen
dc.subjectPhysical Sciencesen
dc.subjectMechanicsen
dc.subjectPhysics, Fluids & Plasmasen
dc.subjectPhysicsen
dc.subjectflow-structure interactionsen
dc.subjectgranular mediaen
dc.subjectparticle/fluid flowen
dc.subjectREYNOLDS-NUMBERen
dc.subjectSHEAR-FLOWen
dc.subjectMARSen
dc.subjectFLUIDen
dc.subjectIRELANDen
dc.subjectBODIESen
dc.subjectSTORMen
dc.subject.anzsrcField of Research::01 - Mathematical Sciences::0105 - Mathematical Physicsen
dc.subject.anzsrcField of Research::02 - Physical Sciencesen
dc.titleBody-rock or lift-off in flowen
dc.typeJournal Articleen
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