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  • 1
    Online Resource
    Online Resource
    Emptying filling boxes: the fluid mechanics of natural ventilation
    Cambridge University Press (CUP) ; 1990
    In:  Journal of Fluid Mechanics Vol. 212, No. -1 ( 1990-3), p. 309-
    Details
    In: Journal of Fluid Mechanics, Cambridge University Press (CUP), Vol. 212, No. -1 ( 1990-3), p. 309-
    Type of Medium: Online Resource
    ISSN: 0022-1120 , 1469-7645
    URL: Article
    DOI: 10.1017/S0022112090001987
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1990
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    detail.hit.zdb_id: 218334-1
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  • 2
    Online Resource
    Online Resource
    Measurements beneath an Antarctic ice shelf using an autonomous underwater vehicle
    American Geophysical Union (AGU) ; 2006
    In:  Geophysical Research Letters Vol. 33, No. 8 ( 2006)
    Details
    In: Geophysical Research Letters, American Geophysical Union (AGU), Vol. 33, No. 8 ( 2006)
    Type of Medium: Online Resource
    ISSN: 0094-8276
    URL: Article
    DOI: 10.1029/2006GL025998
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2006
    detail.hit.zdb_id: 2021599-X
    detail.hit.zdb_id: 7403-2
    SSG: 16,13
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  • 3
    Online Resource
    Online Resource
    Flow and Mixing in the Rift Valley of the Mid-Atlantic Ridge
    American Meteorological Society ; 2002
    In:  Journal of Physical Oceanography Vol. 32, No. 6 ( 2002-06), p. 1763-1778
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 32, No. 6 ( 2002-06), p. 1763-1778
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(2002)032〈1763:FAMITR〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 2002
    detail.hit.zdb_id: 2042184-9
    detail.hit.zdb_id: 184162-2
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  • 4
    Online Resource
    Online Resource
    Modeling hydrography and marine sedimentation in the Cariaco Basin since the Last Glacial Maximum
    American Geophysical Union (AGU) ; 2009
    In:  Journal of Geophysical Research Vol. 114, No. C4 ( 2009-04-10)
    Details
    In: Journal of Geophysical Research, American Geophysical Union (AGU), Vol. 114, No. C4 ( 2009-04-10)
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2008JC005076
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2009
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    detail.hit.zdb_id: 3094104-0
    detail.hit.zdb_id: 2130824-X
    detail.hit.zdb_id: 2016813-5
    detail.hit.zdb_id: 2016810-X
    detail.hit.zdb_id: 2403298-0
    detail.hit.zdb_id: 2016800-7
    detail.hit.zdb_id: 161666-3
    detail.hit.zdb_id: 161667-5
    detail.hit.zdb_id: 2969341-X
    detail.hit.zdb_id: 161665-1
    detail.hit.zdb_id: 3094268-8
    detail.hit.zdb_id: 710256-2
    detail.hit.zdb_id: 2016804-4
    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
    detail.hit.zdb_id: 3094167-2
    detail.hit.zdb_id: 2220777-6
    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 5
    Online Resource
    Online Resource
    On meltwater under ice shelves
    American Geophysical Union (AGU) ; 1995
    In:  Journal of Geophysical Research: Oceans Vol. 100, No. C4 ( 1995-04-15), p. 6961-6965
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 100, No. C4 ( 1995-04-15), p. 6961-6965
    Abstract: The basic features of the flow of meltwater under ice shelves can be described by a set of simple relations and length scales. The flow may be divided into two regions, with different basic processes dominating in each. In the first region, melting of the underside of the ice shelf is important and the temperature and salinity of the current tend toward “equilibrium” values, such that the changes due to melting of the ice shelf are balanced by changes due to entrainment of ambient seawater. The equilibrium values change with depth owing to the effect of the change in pressure on the freezing point. As the current increases in thickness, it is no longer able to adjust sufficiently rapidly to the changing equilibrium values, arid the flow moves into the second region. The extent of the first region is governed by the location of the “ambient freezing point.” In the second region, melting is less important and the current behaves as an entraining drag‐limited gravity current in a stratified ambient fluid, leaving the shelf once the current has the same density as the ambient seawater. The heights of the two regions depend mainly on the ambient conditions and only indirectly on parameters such as slope angle, entrainment constant, drag coefficient, and turbulent transfer coefficients.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/94JC03244
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1995
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    detail.hit.zdb_id: 2016810-X
    detail.hit.zdb_id: 2403298-0
    detail.hit.zdb_id: 2016800-7
    detail.hit.zdb_id: 161666-3
    detail.hit.zdb_id: 161667-5
    detail.hit.zdb_id: 2969341-X
    detail.hit.zdb_id: 161665-1
    detail.hit.zdb_id: 3094268-8
    detail.hit.zdb_id: 710256-2
    detail.hit.zdb_id: 2016804-4
    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
    detail.hit.zdb_id: 3094167-2
    detail.hit.zdb_id: 2220777-6
    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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  • 6
    Online Resource
    Online Resource
    Gravity current flow over obstacles
    Cambridge University Press (CUP) ; 1995
    In:  Journal of Fluid Mechanics Vol. 292 ( 1995-06-10), p. 39-53
    Details
    In: Journal of Fluid Mechanics, Cambridge University Press (CUP), Vol. 292 ( 1995-06-10), p. 39-53
    Abstract: When a gravity current meets an obstacle a proportion of the flow may continue over the obstacle while the rest is reflected back as a hydraulic jump. There are many examples of this type of flow, both in the natural and man-made environment (e.g. sea breezes meeting hills, dense gas and liquid releases meeting containment walls). Two-dimensional currents and obstacles, where the reflected jump is in the opposite direction to the incoming current, are examined by laboratory experiment and theoretical analysis. The investigation concentrates on the case of no net flow, so that there is a return flow in the (finite depth) upper layer. The theoretical analysis is based on shallow-water theory. Both a rigid lid and a free surface condition for the top of the upper layer are considered. The flow may be divided into several regions: the inflow conditions, the region around the hydraulic jump, the flow at the obstacle and the flow downstream of the obstacle. Both theoretical and empirical inflow conditions are examined; the jump conditions are based on assuming that the energy dissipation is confined to the lower layer; and the flow over the obstacle is described by hydraulic control theory. The predictions for the proportion of the flow that continues over the obstacle, the speed of the reflected jump and the depth of the reflected flow are compared with the laboratory experiments, and give reasonable agreement. A shallower upper layer (which must result in a faster return velocity in the upper layer) is found to have a significant effect, both on the initial incoming gravity current and on the proportion of the flow that continues over the obstacle.
    Type of Medium: Online Resource
    ISSN: 0022-1120 , 1469-7645
    URL: Article
    DOI: 10.1017/S002211209500142X
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1995
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    detail.hit.zdb_id: 218334-1
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  • 7
    Online Resource
    Online Resource
    Rotating gravity currents. Part 2. Potential vorticity theory
    Cambridge University Press (CUP) ; 2005
    In:  Journal of Fluid Mechanics Vol. 522 ( 2005-1), p. 63-89
    Details
    In: Journal of Fluid Mechanics, Cambridge University Press (CUP), Vol. 522 ( 2005-1), p. 63-89
    Type of Medium: Online Resource
    ISSN: 0022-1120 , 1469-7645
    URL: Article
    DOI: 10.1017/S0022112004001363
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2005
    detail.hit.zdb_id: 1472346-3
    detail.hit.zdb_id: 218334-1
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  • 8
    Online Resource
    Online Resource
    Investigation of the fractal structure of jets and plumes
    Cambridge University Press (CUP) ; 1993
    In:  Journal of Fluid Mechanics Vol. 249, No. -1 ( 1993-4), p. 521-
    Details
    In: Journal of Fluid Mechanics, Cambridge University Press (CUP), Vol. 249, No. -1 ( 1993-4), p. 521-
    Type of Medium: Online Resource
    ISSN: 0022-1120 , 1469-7645
    URL: Article
    DOI: 10.1017/S0022112093001272
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1993
    detail.hit.zdb_id: 1472346-3
    detail.hit.zdb_id: 218334-1
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  • 9
    Online Resource
    Online Resource
    Collapse of particle-laden buoyant plumes
    Cambridge University Press (CUP) ; 2019
    In:  Journal of Fluid Mechanics Vol. 865 ( 2019-04-25), p. 904-927
    Details
    In: Journal of Fluid Mechanics, Cambridge University Press (CUP), Vol. 865 ( 2019-04-25), p. 904-927
    Abstract: Particle loading affects the dynamics of buoyant plumes, since the difference between particle and fluid densities is much greater than that in the fluid alone. In stratified environments, plume rise is density limited; after initial overshoot, the plume reaches a terminal level and spreads radially. Particles dropping from this horizontal intrusion may be re-entrained. This recycling of dense matter reduces plume buoyancy and intrusion height and, for sufficient load, can lead to plume collapse. Entrainment-based formulae yield a steady-state plume rise. We identify a new conserved quantity for such plumes. Integrating paths of particles dropping from the intrusion yields the fraction re-entrained. A simple mathematical model predicts from buoyancy ratio at source ( $P=$  negative particle buoyancy divided by positive fluid buoyancy) whether a particle-laden plume will collapse. Under this model, for small settling velocity, a particle-laden plume will not collapse if $P 〈 0.368$ . Above this, collapse depends also on the amount of particle-free ambient fluid entrained in the overshoot region. For pure plumes, experimental evidence suggests that this is small. For forced plumes, more substantial overshoot and entrainment is shown to increase the critical ratio. An extension, based on successive recycling, estimates time to collapse. To investigate further we develop a simple computational model, coupling a ‘top-hat’ plume model, an analytical formula for radially decaying concentrations in the intrusion and an axisymmetric finite-volume solution for time-dependent settling and entrainment. The model can predict the impact of particle load on final rise, as well as the occurrence and time scales of plume collapse.
    Type of Medium: Online Resource
    ISSN: 0022-1120 , 1469-7645
    URL: Article
    DOI: 10.1017/jfm.2019.74
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1472346-3
    detail.hit.zdb_id: 218334-1
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  • 10
    Online Resource
    Online Resource
    Observations of mixed layer deepening during an Antarctic gale
    American Geophysical Union (AGU) ; 2013
    In:  Journal of Geophysical Research: Oceans Vol. 118, No. 3 ( 2013-03), p. 1396-1404
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 118, No. 3 ( 2013-03), p. 1396-1404
    Abstract: Observations made of mixed‐layer deepening and freshening in an Antarctic gale Input of wind work led to mixed layer deepening to 120 m, scaling on u*/f Freshwater input came from rapid melting of sea ice, faster than models predict
    Type of Medium: Online Resource
    ISSN: 2169-9275 , 2169-9291
    URL: Issue
    URL: Article
    DOI: 10.1002/jgrc.v118.3
    DOI: 10.1002/jgrc.20140
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2013
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    detail.hit.zdb_id: 161667-5
    detail.hit.zdb_id: 3094219-6
    SSG: 16,13
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