Simplified pressure model for quantitative shrinkage porosity prediction in steel castings

被引：2
作者：
Catalina, A. V. [1 ]
Monroe, C. A. [1 ]
机构：
[1] Caterpillar Inc, Mossville, IL 61552 USA
来源：
MCWASP XIII: INTERNATIONAL CONFERENCE ON MODELING OF CASTING, WELDING AND ADVANCED SOLIDIFICATION PROCESSES | 2012年 / 33卷
关键词：
SOLIDIFICATION; MICROPOROSITY; ALLOYS;
D O I：
10.1088/1757-899X/33/1/012067
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to reduce the computational effort, a simplified pressure model is proposed for predicting shrinkage-related defects in steel castings. Based on the specific conditions developing during casting solidification, the governing fluid flow equations (i.e., Stokes and Darcy) have been reformulated such as the pressure field could be calculated only based on volume (density) changes occurring during the solidification process. Velocity is thus eliminated from the governing equations of fluid flow therefore simplifying the method of solution for pressure and tremendously reducing the computational effort. Model development and simulation results are presented and discussed.
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页数：8
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