Abstract
The numerical algorithm developed in Part I is applied to a problem involving transient flow and solidification of a molten metal in a narrow gap, especially in the ventilation channels of die-cast dies. The presented algorithm is based on the lubrication approximation where the 2-D in-plane equations are obtained after integrating the 3-D flow equations. Applying heat balance over the control volume yields the accompanying temperature equation. These equations were applied to approximate flow and solidification in the narrow sections of a die-cast die. The numerical algorithm was verified by comparing the results with the ones obtained from the commercial software FLOW3D®, and the actual die-cast parts. Solidification characteristics were verified by measuring SDAS (secondary dendrite arm spacing). A parametric study explored the dependence of the metal flow-length in the channel on factors such as channel thickness, entrance metal velocity, and wall temperature. The presented algorithm was successfully implemented with significant savings in CPU time.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.