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- Gravity_current abstract "In fluid dynamics, a gravity current is a primarily horizontal flow in a gravitational field that is driven by a density difference, hence gravity currents also sometimes being referred to as \"density currents\". When a gravity current propagates along a plane of neutral buoyancy within a stratified ambient fluid, it is known as a Gravity Current Intrusion. Typically, the density difference is small enough for the Boussinesq approximation to be valid. Gravity currents can be either finite in volume, such as the release from a dam break, or continuously supplied from a source, such as in doorway or lava flows.Gravity currents are typically of very low aspect ratio: they are much longer than they are high. It can be shown using dimensional analysis that typical vertical velocities are much smaller than typical horizontal velocities in the current, and so the pressure distribution is thus approximately hydrostatic, apart from near the leading edge. Thus gravity currents may be simulated by the shallow water equations, with special dispensation for the leading edge which behaves as a discontinuity.".
- Gravity_current wikiPageExternalLink watch?v=T9KDemlTpDM.
- Gravity_current wikiPageID "395192".
- Gravity_current wikiPageLength "14787".
- Gravity_current wikiPageOutDegree "22".
- Gravity_current wikiPageRevisionID "696667716".
- Gravity_current wikiPageWikiLink Annual_Review_of_Fluid_Mechanics.
- Gravity_current wikiPageWikiLink Avalanche.
- Gravity_current wikiPageWikiLink Boussinesq_approximation_(buoyancy).
- Gravity_current wikiPageWikiLink Category:Fluid_dynamics.
- Gravity_current wikiPageWikiLink Density.
- Gravity_current wikiPageWikiLink Dimensional_analysis.
- Gravity_current wikiPageWikiLink Fluid.
- Gravity_current wikiPageWikiLink Fluid_dynamics.
- Gravity_current wikiPageWikiLink Froude_number.
- Gravity_current wikiPageWikiLink Gravity.
- Gravity_current wikiPageWikiLink Gravity_Current_Intrusion.
- Gravity_current wikiPageWikiLink Haboob.
- Gravity_current wikiPageWikiLink Hydrostatics.
- Gravity_current wikiPageWikiLink Kelvin–Helmholtz_instability.
- Gravity_current wikiPageWikiLink Lahar.
- Gravity_current wikiPageWikiLink Lava.
- Gravity_current wikiPageWikiLink Mach_number.
- Gravity_current wikiPageWikiLink Pyroclastic_flow.
- Gravity_current wikiPageWikiLink Shallow_water_equations.
- Gravity_current wikiPageWikiLink Turbidity_current.
- Gravity_current wikiPageWikiLink Weightlessness.
- Gravity_current wikiPageWikiLinkText "Gravity current box models".
- Gravity_current wikiPageWikiLinkText "Gravity current".
- Gravity_current wikiPageWikiLinkText "density current".
- Gravity_current wikiPageWikiLinkText "density currents".
- Gravity_current wikiPageWikiLinkText "gravity current".
- Gravity_current wikiPageUsesTemplate Template:Citation_needed.
- Gravity_current wikiPageUsesTemplate Template:Refimprove.
- Gravity_current wikiPageUsesTemplate Template:Reflist.
- Gravity_current subject Category:Fluid_dynamics.
- Gravity_current type Dynamic.
- Gravity_current type Mechanic.
- Gravity_current comment "In fluid dynamics, a gravity current is a primarily horizontal flow in a gravitational field that is driven by a density difference, hence gravity currents also sometimes being referred to as \"density currents\". When a gravity current propagates along a plane of neutral buoyancy within a stratified ambient fluid, it is known as a Gravity Current Intrusion. Typically, the density difference is small enough for the Boussinesq approximation to be valid.".
- Gravity_current label "Gravity current".
- Gravity_current sameAs Q4383593.
- Gravity_current sameAs 密度流.
- Gravity_current sameAs Tyngdestraum.
- Gravity_current sameAs m.0236mk.
- Gravity_current sameAs Q4383593.
- Gravity_current sameAs 密度流.
- Gravity_current wasDerivedFrom Gravity_current?oldid=696667716.
- Gravity_current isPrimaryTopicOf Gravity_current.