Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"critical height"”.
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Critical height and surface deformation of column-supported embankments
… and the foundation soil. When the embankment height is low relative to the clear spacing between columns, there is the risk of poor ride quality due to the reflection of the differential foundation settlement at the surface of the embankment. The minimum embankment height where differential …
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Heat transfer between a supernatant gas and a flowing vibrofluidized bed of solid particles
… intensity, as well as decreasing the baffle height of the system served to increase the "apparent" heat-transfer coefficient. Increasing the solid flow rate produced higher heat-transfer coefficients only when the baffle was lowered past a certain "critical" height. Under optimum conditions …
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Fundamentals of microlayer evaporation and its role on boiling heat transfer enhancement
… a surface and testing its boiling performance. A critical height of the ridges is found to exist, determined by the film thickness, below which no enhancement is observed while above which similar enhancements are achieved regardless of the ridge height. An analytical model is developed to …
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Probability analysis of slope stability
… analysis. The second case study obtained the critical height for a planar failure surface and the factor of safety for a circular failure surface using the response surface analysis method combined with a Monte Carlo simulation.
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Laboratory experiments of multi-phase plumes in stratification and crossflow
… plume stage followed by separation at a critical height, hs, dependent on B, us, and the crossflow velocity, u[infinity]. A single-phase model was applied to these plumes by treating the separated fluid as a buoyant momentum jet. Stratified crossflow experiments showed that separation …
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An Experimental Investigation into the Passive Reconfiguration of Flexible Plates Near a Free Surface
… show that each heaving frequency has a different critical height to the free surface in which deep water behavior is distinguished from shallow water behavior. At the critical depth, the plate deflection becomes asymmetric due to free surface effects. The second stage of experiments focused on …
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Insights from geodynamic models into ice flow, mantle magmatism, and their interactions
… Ice Cliff Instability posits ice cliffs above a critical height collapse under their own weight, initiating runaway ice sheet retreat. In Chapter 4, I model the formation of marine ice cliffs, as an Antarctic ice shelf is removed. I show that over ice-shelf collapse timescales longer than a few …
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Insights from geodynamic models into ice flow, mantle magmatism, and their interactions
… Ice Cliff Instability posits ice cliffs above a critical height collapse under their own weight, initiating runaway ice sheet retreat. In Chapter 4, I model the formation of marine ice cliffs, as an Antarctic ice shelf is removed. I show that over ice-shelf collapse timescales longer than a few …
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The dynamics of unsteady strait and sill flow
… asymptotic state are found to depend upon the height of the obstacle bO in relation to a critical height bc and a blocking height bb. For bO < bc < bb, isolated packets of nondispersive (long gravity or Kelvin) waves are generated which propagate away from the obstacle, leaving the far field …
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The dynamic role of ridges in a β-plane channel : towards understanding the dynamics of large scale circulation in the Southern Ocean
… in the presence of a bottom ridge. There is a critical height of the ridge, above which all geostrophic contours in the channel are blocked. In the subcritical case, the Sverdrupian balance does not apply and there is no solution in the inviscid limit. In the supercritical case, however, the …