Comparison between Casting Solidification Simulation in Cylindrical Coordinates and in Cartesian Coordinates
Journal Title: RECENT - Year 2016, Vol 17, Issue 47
Abstract
Two software modules for solidification simulating of eutectic alloy castings were done at Transylvania University of Brasov. The first of them 3D-SIM EUT is based on finite difference mathematical model in Cartesian coordinates. The second SIM 2D-CIL-EUT, use a mathematical model in cylindrical coordinates. It is specialized for solidification simulation of casting with rotational symmetry. Simulation in cylindrical coordinates has the advantage that it allows the solidification simulation of spatial parts with rotational symmetry by 2D simulation, thus resulting a much shorter time of simulation. In addition, it allows the exact representation of the circular perimeter of parts with rotational symmetry, and a simpler division of system casting-mould in finite elements. After creating software in cylindrical coordinates, its operation and accuracy of the results were verified by several methods. In this paper, the verification was done by comparing to 3D-SIM EUT software in Cartesian coordinates that has been previously verified. The final conclusion of the study is that the software based on the mathematical model in cylindrical coordinates provides results consistent with previously conducted software in Cartesian coordinates. In exchange for the studied part, the simulation duration was 40 times smaller.
Authors and Affiliations
Ana VEȚELEANU, Ionuț IONESCU, Ioan CIOBANU, Ion MUNTEANU, Tibor BEDO
Keywords
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