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Yogeshwar SahaiProfessorPh.D., University of London, England, 1979 Tel. (614) 292-1968 Office: 488 Watts Hall
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Dr. Sahai's research interests include a variety of topics in processing of materials area. One of his main areas of research interests is concerned with developing and applying computer and physical modeling techniques to reactor design optimization and improvements in metals and materials processing operations. He has applied these research techniques to primary and secondary steelmaking processes, aluminum production, refining, casting processes including ladle, tundish, and continuous casting mold systems, thin strip casting, cold chamber die-casting, secondary remelting of thin aluminum scrap, such as used beverage containers, and chemical vapor deposition processes. His other research interests are relating to environmental, waste management, and recycling issues in steel and aluminum production and processing industries.
Using his Computer and Physical Modeling Techniques, he has recently developed new Submerged Entry Nozzle (SEN) designs for continuous casting molds. One such design has recently been patented and started to being successfully employed in industry. He has also developed and patented a technique for suppressing the surface turbulence and standing wave in continuous casting molds, which is the main cause for majority of the casting defects in cast slabs. Two examples are shown in the following figures.
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Figure 1: Predicted melt flow during filling and injection in a die-casting shot sleeve |
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Figure 2: Predicted melt flow pattern and surface standing wave in continuous casting mold |
Dr. Sahai has published over 100 technical papers in peer reviewed journals and conference proceedings, has edited or published four books, and co-authored five patents. He has been very active in The Minerals, Metals, and Materials Society (TMS) and the Iron and Steel Society (ISS). He is co-editor of three books entitled Casting of Near Net Shape Products, Recycling of Metals and Engineered Materials and Transport Processes in Metallurgical Systems. He has co-authored a book on Tundish Technology for Clean Steel Production. He has received several awards for his teaching, research and leadership including 1999 Light Metals best paper award, 1993 Electric Furnace conference best paper award, Process Technology Division of Iron and Steel Society award for leadership in 1986, 1988, and 1990, Extractive Metallurgy Science award of TMS in 1984, MacQuigg teaching and Lumley research awards.
