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.
Results
Showing 1 to 19 of 19 for “"Convective Instability"”.
-
Feedback control of a convective instability.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1965. Ph.D.
-
Thermal Convective Instability of Bi-Layered Systems
Made available in DSpace on 2014-12-10T21:24:48Z (GMT). No. of bitstreams: 1 7212265.pdf: 6411348 bytes, checksum: 07bfa3c094ef3d910d2a0c6856f95358 (MD5) Previous issue date: 1971
-
The development of convective instability during SESAME, 1979
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Meteorology and Physical Oceanography, 1983.
-
Convective instability in a layer of radiating fluid
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1964.
-
Experimental and theoretical study of convective instability in an enclosure.
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1979.
-
Dependence of continental severe convective instability on climatological environmental conditions
… by exploring the physical mechanisms by which convective available potential energy (CAPE) is generated, and their dependence on climatological properties of the Earth's environment. First, a budget of the time tendency of CAPE is used to examine the buildup of CAPE in advance of severe …
-
Effects of lithospheric strength on convection in the Earth's mantle
… subduction for plate-scale flow, or as localized convective instability beneath lithospheric plates. The deformation associated with these processes is resisted by the extreme temperature-dependence of the lithosphere's strength. Ways in which lithosphere deformation affects convection in the …
-
Vlasov simulations of kinetic enhancement of Raman backscatter in laser fusion plasmas
… theory predicts back-scattered SRS is a convective instability. Simulations in a finite length, homogeneous plasma show electron trapping drastically elevates the reflected light over convective gain values ("kinetic enhancement"). Average reflectivities are [approx.] 10%, while the …
-
The effect of Gibbs adsorption on Marangoni Instability
… at the onset of surface tension-driven instability, in gas-liquid systems, as characterized by the critical value of a dimensionless Marangoni number. A theoretical analysis, for the case in which a surface tension-lowering solute transfers from a liquid according to penetration theory, …
-
Topographic Influence and Atmospheric Dynamics in the Indian Wells Valley
… change in conditions aloft, or an increase in convective instability at the surface of IWV which prevents air aloft from sinking towards the surface. These results provide a better understanding of the mesoscale meteorology in this region and improve forecast and analysis for plume transport …
-
Front Propagation and Feedback in Convective Flow Fields
… induced solutal and thermal feedback to the convective flow field is then studied by solving an exothermic autocatalytic reaction where the products and the reactants can vary in density. A single self-organized fluid roll propagating with the front is created by the solutal feedback while a …
-
Ventilation, stratification and flow instability driven by vertically distributed buoyancy sources
… wave modes is a remarkable feature of the instability, distinguishing these `annular wall plumes’ from free plumes/jets for which the helical mode is usually dominant. It is found that higher surface curvature stabilises the temporal axisymmetric mode significantly, but only has moderate …
-
Dynamics Of Internal Solitary Wave And Bottom Boundary Interaction
… breakers which are associated with reflection, convective instability and boundary layer separation, respectively. Over mild slopes (S≤0.05), nonlinearity varies gradually and the wave fissions into a train of waves of elevation after it passes through the turning point where solitary waves …
-
Turbulence and Transport in Stars and Planets
… stabilises shallow radiative zones against the convective instability, which would otherwise take over early on in the planet's formation as it proceeds to thermal equilibrium. Hence tidal dissipation is dramatically enhanced, which serves to inject significant quantities of heat into the upper …
-
Stability of fluid-loaded structures
… in the 'long time' limit. These include convective instability, absolute instability and negative energy waves which are destabilized by dissipation. However, structures are necessarily of finite length and may have discontinuities. We have undertaken an analytical and computational study …
-
MMS Observations of the Kelvin-Helmholtz Instability and Associated Ion Scale Waves
… One potential process is the Kelvin-Helmholtz instability (KHI). The KHI is a convective instability which operates at the fluid scale in plasmas, but is capable of driving secondary process at smaller scales. Previous work has shown evidence of magnetic reconnection, various ion scale wave …
-
The Dynamic Character of the Flow Over a 3.5 Caliber Tangent-Ogive Cylinder in Steady and Maneuvering States at High Incidence
… the forebody tip, so as to leverage the inherent convective instability. The data resulting from these tests were analyzed in order to determine how the coning motions affect the distribution of surface pressure and yaw forces, how quickly the flow reacts to the motion, and the extent of control …
-
A high-order hybrid flow solver for the simulation of nonlinear internal waves in long complex domains
… China Sea. As the ISW shoals, the resulting convective and shear instabilities and ISW-driven turbulence are investigated.
-
The Hydroclimate Variability of Central Africa: seasonal cycle, mechanisms, teleconnections and impacts on neighbouring regions
… Oscillations (ENSO), is characterized by strong convective activity due to an unstable atmosphere over central Africa, leading to high rainfall with less variance. Nevertheless, when the Central Africa Low prevails, Central Africa is a sink of water vapor, with the Indian Ocean as the main …