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 20 of 39 for “"Thermal convection"”.
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Unsteady Turbulent Thermal Convection
Made available in DSpace on 2014-12-13T19:55:28Z (GMT). No. of bitstreams: 1 7913452.pdf: 6971677 bytes, checksum: aee66dfa593fbae28d95ce38bdda394c (MD5) Previous issue date: 1978
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Thermal Convection in Rotating Fluids
Made available in DSpace on 2014-12-10T21:24:53Z (GMT). No. of bitstreams: 1 7500248.pdf: 6750417 bytes, checksum: 075f78830a9cd65237def3a561df8f77 (MD5) Previous issue date: 1974
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Studies in Unsteady Penetrative Thermal Convection
This study concentrates on the dynamics and structure of turbulence in the interfacial region and the upper part of a mixed layer which is capped by a linearly stratified, non-turbulent region. Measurements of the local, instantaneous values of the temperature, the vertical velocity and horizontal …
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Thermal convection between sloping parallel boundaries,
Thesis (Sc D.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1970.
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Thermal convection in slender laterally-heated cavities
… methods. A numerical scheme for finding thermal convective flows in a finite laterally heated cavity is described in detail in Chapter 2. The end-zone problems for tall cavities with conducting and adiabatic horizontal boundaries are considered in Chapters 3 and 4 respectively. For …
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Thermal Convection in a Completely Confined Fluid Layer
Made available in DSpace on 2014-12-08T23:18:12Z (GMT). No. of bitstreams: 1 6604245.pdf: 3523123 bytes, checksum: 6d946d42ec2a0cb930cf5ef6ad217ef3 (MD5) Previous issue date: 1965
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Experimental Observations on Thermal Convection in Confined Gas Layers
Made available in DSpace on 2014-12-08T23:18:22Z (GMT). No. of bitstreams: 1 6812182.pdf: 6800521 bytes, checksum: 509b4a5e6413d37ba53d87f422aceb82 (MD5) Previous issue date: 1968
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High Reynolds Number Unsteady Thermal Convection in a Shallow Layer
… mean circulation was set up along with turbulent thermal convection in a slightly inclined layer of water, heated from below and insulated at top and sides. Mean flow and turbulent moments were measured with an LDV to compare with previous studies of convection in horizontal layers and to examine …
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Apparatus for spherical Taylor-Couette flow with induced thermal convection
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Analysis of Numerical Methods for Incompressible Multiphase Flows with Thermal Convection
… of incompressible multiphase flows with thermal convection whose dynamics is governed by the Navier-Stokes equations and the temperature equation under the Boussinesq approximation. Unlike traditional schemes that rely on using the temperature and velocity as primary variables, our …
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Centrifugally Driven Thermal Convection and Gravitational Instabilities in Bounded Rotating Fluids
Made available in DSpace on 2014-12-08T23:18:29Z (GMT). No. of bitstreams: 1 7013353.pdf: 8219439 bytes, checksum: f8ec41ed52b8b72a178246af8b87dde0 (MD5) Previous issue date: 1969
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Boundary heterogeneities in thermal convection: Urban Heat Islands and the Rayleigh-Bénard problem
L'abstract è presente nell'allegato / the abstract is in the attachment
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Variable Viscosity Thermal Convection at Infinite Prandtl Number in a Thick Spherical Shell
Variable viscosity thermal convection at infinite Prandtl number in a thick spherical shell is modeled using the finite element method. The discretized tensor Navier-Stokes equations are solved with the multigrid method applied to the spherical elements. Numerically convergent solutions can be …
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Development of experimental techniques and studies of spatial structure in turbulent thermal convection
… to the study of spatial structure of turbulent thermal convection in wide horizontal water layers. A large-aspect-ratio test section for the study of turbulent Rayleigh convection in water has been constructed, instrumented and characterized. Boundary temperature measurements reveal significant …
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Thermal convection in a rotating annulus of liquid: numerical studies of the axisymmetric regime of flow.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1966. Ph.D.
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Nodal Methods for Problems in Fluid Mechanics and Neutron Transport (navier-Stokes Equation, Boussinesq, Lid-Driven Cavity, Natural Thermal Convection, Diffusion Synthetic Acceleration)
A new high-accuracy, coarse-mesh, nodal integral approach is developed for the efficient numerical solution of linear partial differential equations. It is shown that various special cases of this general nodal integral approach correspond to several high-efficiency nodal methods developed recently …
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Geochemical modeling of diagenesis, hydrothermal alteration, and unconformity-related uranium mineralization in the Athabasca Basin, Saskatchewan, Canada
… or basement lithologies under diagenetic-hydrothermal conditions. However, there is controversy regarding whether U is ultimately derived from the basin or the basement, fluid flow mechanisms responsible for metal leaching and transport, and deposition mechanisms of ores. This study uses …
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A multiscale analysis of heat transfer in porous media
The modeling of thermal convection in porous media is a challenging task due to the inherent structural and thermophysical heterogeneities that permeate over several scales. In the present thesis, I address several issues relevant to buoyancy-driven thermal convection in porous media. The central …
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An Analysis of Stability Margins for Continuous Systems
… issues for finite element approximations of a thermal convection loop.
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Distributed Parameter Control of Thermal Fluids
We consider the problem of controlling a thermal convection flow by feedback. The system is governed by the Boussinesq approximation of the coupled set of Navier-Stokes and heat equations. The control is applied through Dirichlet boundary conditions. We concentrate on a two-dimensional mode and use …
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