Analysis of Solidification Interface Shape Resulting From Applied Sinusoidal Heating

[+] Author and Article Information
R. Siegel

National Aeronautics and Space Administration, Lewis Research Center, Cleveland, Ohio 44135

J. Heat Transfer 104(1), 13-18 (Feb 01, 1982) (6 pages) doi:10.1115/1.3245041 History: Received May 08, 1981; Online October 20, 2009


Maintaining a flat solidification interface is important for forming desired crystal structures in certain types of metal casting processes. This has application in new manufacturing techniques for naturally strengthened composite components such as turbine blades. The solidification interface shape will adjust to be compatible with the spatial distribution of energy being transferred to it. The interface shape must be found that satisfies conditions of simultaneously being at the fusion temperature and having an imposed spatially varying heat flux. Specific results are obtained for the heat transfer from the liquid phase varying along the interface in a cosine fashion. Interface shapes are found as a function of the amplitude and wavelength of the imposed heat transfer variations, and the sensitivity of the interface shape to these variations is examined.

Copyright © 1982 by ASME
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