Fluid Flow Modeling for Computer-Aided Design of Castings
A comprehensive computer-aided-design system for producing castings must make use of several techniques to model the flow of molten metal through the sprue and runners and into the mold cavity. The techniques described in this report have proven to be useful, each in its own place. The techniques based on the Bernoulli and Saint-Venant equations are well established, but it is important to incorporate them in a computer system so that the mass of calculations required to obtain solutions, often iteratively, may be handled with ease, and so that the extensive data bases that are needed may be accessed efficiently. The marker-and-cell technique, although not previously used to any extent in metallurgical applications, appears to have a unique ability to model flow patterns within mold cavities. Taken together, these techniques can provide the designer with the information needed to improve casting quality and efficiency.
KeywordsFriction Factor Molten Metal Ductile Iron Mold Cavity Fluid Flow Modeling
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