"This dissertation presents an analytical study of shrinkage-induced transport phenomena during alloy solidification. A mathematical model, based on the continuum model, has been developed to investigate the shrinkage-induced fluid flow and the associated domain change, and its interaction with natural convection. The governing conservation equations were integrated over the control volume and the resulting discretization equations were solved by the SIMPLEC algorithm.
Numerical calculations were performed for a typical material of 1% Cr-Steel. The results show that the shrinkage-induced fluid flow and corresponding domain change enhance the convective heat transfer rate. The global solidification time is found to be smaller than that predicted without the shrinkage-induced effect. Also, the isotherms in both the shrinkage-induced fluid flow and natural convection are almost the same, but the flow patterns are found to be very different. This behavior in the change of flow patterns can have a profound effect on the formation of casting defects"--Abstract, page iv.
Chen, T. S.
Koval, Leslie Robert
Ho, C. Y. (Chung You), 1933-1988
Grimm, L. J.
Mechanical and Aerospace Engineering
Ph. D. in Mechanical Engineering
National Science Foundation (U.S.)
University of Missouri--Rolla
Journal article titles appearing in thesis/dissertation
- Shrinkage-induced fluid flow and domain change in two-dimensional alloy solidification
- Interaction between shrinkage-induced fluid flow and natural convection during alloy solidification
xvi, 138 pages
© 1990 Kun-Chuan Chiang, All rights reserved.
Dissertation - Restricted Access
Heat -- Convection -- Mathematical models
Fluid dynamics -- Mathematical models
Metals -- Rapid solidification processing
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Link to Catalog Record
Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://merlin.lib.umsystem.edu/record=b2333159~S5
Chiang, Kun-Chuan, "Studies on the shrinkage-induced transport phenomena during alloy solidification" (1990). Doctoral Dissertations. 807.
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