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| Radiative Heat Transfer Calculation for Superalloy Turbine Blade in Directional Solidification Process |
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Cite this article:
. Radiative Heat Transfer Calculation for Superalloy Turbine Blade in Directional Solidification Process. Acta Metall Sin, 2007, 43(5): 465-471 .
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Abstract Numerical simulation has a more and more important effect on improving directional solidification process. Because of the vacuum environment in the furnace where turbine blades are produced, radiative heat transfer plays a significant role in energy transportation. In traditional radiative heat transfer approaches, view factor calculation is a key step, so it takes too much time. Considering this point, Improved Monte Carlo Ray Tracing Approach has been developed. Because this approach combines the space division and the directional solidification features, the view factor calculation is avoided so that the time consuming is greatly shortened.The approach has been embedded in the self-developed software for turbine blade directional solidification temperature simulation. According to the experiments, the simulation results agreed well with the experimental.
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Received: 20 September 2006
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