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 “"convections"”.
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A Preliminary Study to Assess Model Uncertainties in Fluid Flows
… compressible model both under free and forced convections. It is also noted some differences in the transient.
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Convective Heat Transfer in Quasi-one-dimensional Magnetic Fluid in Horizontal Field and Temperature Gradients
… Grashof number show that the thermomagnetic convections dominate in high magnetic fields. It is shown that the physical nature of the field effect is corresponding to the magnetic body force which is perpendicular to the gravity in our experiments. When the direction of the magnetic body …
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Electrochemical Phase Formation of Ni and Ni-Fe Alloys in a Magnetic Field
… on the net force induced by the natural and MHD convections. The interplay between the natural and MHD convections proved to be important during Ni-Fe alloy deposition, too. When the Lorentz force and the natural convection act in the same direction, an increase of the Fe content of the alloys …
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Seismic Imaging of the Global Asthenosphere using SS Precursors
… may have a long-lasting impact on asthenospheric convections. In continental regions, a broad correlation is observed between the 220-km discontinuity depth structure and surface tectonics. For example, the 220-km discontinuity depth is shallower along the southern border of the Eurasian plate as …
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Modelling and resolving of the ambiguous angle of arrival measurements of the SANAE IV SuperDARN Radar
… 30 HF radars used to monitor charged particle convections in the high latitudes of the ionosphere. This research is inspired by the antenna arrangement of one of these HF radars situated at the South African National Antarctic Expedition (SANAE) IV base. This radar consists of a steered …
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Coupling of nanofluid flow, heat transfer and nanoparticles sedimentation using OpenFOAM
… impacts to each other other in nanofluid natural convections (in both two- and three-dimensional cases). More specifically, temperature driven flow leads to ticker nanoparticles sedimentation layer than that in normal sedimentation case. On the other hand, nanoparticles sedimentation layer induces …
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Simulating the Characteristics and Influences of the Botswana High over Southern Africa using the Model for Prediction Across Scales (MPAS)
… of the Botswana High on droughts and deep convections over the subcontinent. In all the datasets (CRU, ERA5, 20C and MPAS), the most dominant five Drought Modes (hereafter DM1-DM5) over Southern Africa jointly explain more than 60% of the interannual variability in the 3-month summer …
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Investigation of the positive interaction between the primary and secondary circulation and the roles of different types of precipitation in tropical cyclone formation
… contribution by mid-level convection and deep convections results from their increasing areal coverage and intensifying rain rates. Among the three types of convection, deep convection has the largest pixel rain rate, but mid-level convection occurs most frequently and makes the largest …
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On the scale interaction between African easterly waves and convention
… cause that leads to later organization of convections over the Atlantic. Larger temperature gradient with fixed SST gives rise to a stronger jet. The results are insensitive to the initial background humidity but sensitive to the surface water vapor flux over the land.
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Einfluss von Strömungen auf die Entwicklung des Mikrogefüges bei der gerichteten Erstarrung von Al-Si- und Al-Si-Mg-Legierungen
The effect of magnetically controlled convective conditions on the microstructure formation in cast Al-alloys is investigated. A technical Al-7wt.%Si-0.6wt.%Mg alloy (A357) and the binary counterpart Al-7wt.%Si have been directionally solidified upwards over a wide range of constant solidification …