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 6 of 6 for “"Axial thrust"”.
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Optimum time to refurbish a boiler feed pump at Eskom's power stations
… in the annular seals of the impellers and axial thrust balancing devices.
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Theoretical and Experimental Investigation of Magneto Hydrodynamic Propulsion for Ocean Vehicles
… of electric and magnetic fields to generate thrust on a conducting fluid in motion. Electrodes are lined up along the walls of the duct which act as the source of the electric field. Seawater acts as the conducting medium for the current when it passes through the duct. This medium is then …
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Simulation of spike stall inception in a radial vanted diffuser
… used to seal bearing compartments and to balance axial thrust in the rotor. It was previously shown that this bleed air can have a significant impact on both compressor performance and stability. Experiments suggest that spike stall inception in centrifugal compressors can be formed by a vaned …
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Design, fabrication, experimentation and analysis of high-speed microscale gas bearings
… to accomplish self-sustained microbearings, the axial thrust bearing is redesigned for a self-acting spiral groove bearing. The chosen constraint is to incorporate the hydrodynamic thrust bearing with minimal changes to the current device, whilst providing the required load and stiffness. …
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Rotor Wakes; Formations, Interactions, and Design
… an isolated comparison of the influences of jet axial velocity, tangential (swirl) velocity, and wake vortex features on wing/body integration considerations. Using the integrated axial thrust across the same radial volume it was found that peak axial velocity across each propulsive device was …
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Disc friction loss in centrifugal pumps and hydraulic turbines
Dizertační práce je zaměřena na výzkum proudění v mezidiskových spárách hydraulických strojů s důrazem na čerpadla s nízkými specifickými otáčkami. Navzdory tomu, že tekutina v mezidiskových prostorách čerpadel zaujímá velmi malý objem, může výrazně ovlivnit proudění v celém stroji. To má následně …