Computational simulation of air flows through a Sri Lankan wind-driven furnace |
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| Affiliation: | 1. School of Engineering and Computer Science, Harrison Building, University of Exeter, North Park Road, Exeter, UK;2. Dipartimento di Energetica, Politecnico di Milano, Italy;3. School of Archaeology and Geography, University of Exeter, Exeter, UK;1. Chevy Chase Clinical Research, Chevy Chase, Maryland, USA;2. Division of Gastroenterology, Georgetown University Hospital, Georgetown University School of Medicine, Washington, DC, USA;3. Division of Gastroenterology, Hospital University of Pennsylvania, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA;4. Division of Gastroenterology, Montefiore Medical Center, Albert Einstein School of Medicine, Bronx, New York, USA;5. Gastroenterology Division, Department of Veterans Affairs Medical Center, Washington, DC, USA;6. Department of Biostatistics and Bioinformatics, MedStar Health Research Institute, Washington, DC, USA;7. Artann Laboratories, Trenton, New Jersey, USA;1. Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA;2. Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA;3. Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA |
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| Abstract: | Research carried out in the early 1990s in Sri Lanka, combining field survey, ethno-archaeology and excavation, revealed an extensive iron producing industry dating to the second half of the first millennium AD. The field evidence indicated that this industry was based on a shallow, wind-powered furnace design that represented a radical departure from the accepted bellows-driven, shaft furnace model which has been the epitome of successful pre-industrial iron smelting. Subsequent experimental reconstructions of the process carried out in Sri Lanka established that the furnaces were wind-powered and also that they were capable of producing high quality, hypereutectoid steels. The objective of the current work is to use modern techniques in Computational Fluid Dynamics (CFD) to investigate the airflow through and around these furnaces in order to verify the theoretical model of their operation. It also demonstrates the potential application of CFD to the modelling and interpretation of pre-modern pyrotechnologies. |
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