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Professor DebRoy and his students develop computer
models of heat transfer, fluid flow and mass transfer to better understand
high temperature materials processing, and the geometry, composition and
structure of processed materials.
An important aspect of their research is to improve
reliability and usefulness of these models, so that the model predictions
agree well with the experimental results and the models can answer the
questions that are useful to practicing engineers.
Much of their work is focused on welding. They have recently
developed a methodology to systematically tailor weld attributes by
combining a heat transfer and fluid flow model with a genetic algorithm
based optimization model. As a result of this work, the model can now
provide a window of alternative sets of welding parameters to achieve a given
weld geometry and/or other weld attributes.
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