Search for dissertations about: "Yogeshwar Sahai"
Found 4 swedish dissertations containing the words Yogeshwar Sahai.
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1. A Study of the Swirling Flow Pattern when Using TurboSwirl in the Casting Process
Abstract : The use of a swirling flow can provide a more uniform velocity distribution and a calmer filling condition according to previous studies of both ingot and continuous casting processes of steel. However, the existing swirling flow generation methods developed in last decades all have some limitations. READ MORE
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2. Thermodynamics and Kinetics in Metallurgical Processes - with a Special Focus on Bubble Dynamics
Abstract : Gas stirring is commonly used in the steelmaking processes to reinforce chemical reactions, kinetic transfer, and inclusion removal, etc. This dissertation concentrates on multiphase flows with gas bubbling to study fluid dynamics and thermodynamics in metallurgical processes. READ MORE
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3. A Study of Bubble and Inclusion Behaviors in a Liquid Steel Bath
Abstract : The bubble formation processes in a water model experiment were measured by a high-speed camera. Nozzle diameters of 0.5 mm, 1 mm and 2 mm were investigated under both wetting and non-wetting conditions. READ MORE
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4. A study of mold flux entrapment and gas entrainment in an ingot casting process
Abstract : The focus of this work is to study the gas entrainment and mold flux entrapments during the ingot filling process based on physical and numerical modelling.The formation of the free surface was investigated in the uphill teeming method, which illustrates a dynamic change at a quasi-steady state. READ MORE