Dynamic Simulation of Fusion Process and Analysis of Flow Field

Level set/ghost method for weldlines in the filling stage of injection molding is introduced in this article. The algorithm is based on non-isothermal, incompressible, generalized Hele-Shaw flow of a viscous fluid. The physical controlling equation systems are numerically simulated by the general fi...

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Bibliographic Details
Published in:Journal of reinforced plastics and composites 2007-11, Vol.26 (17), p.1781-1792
Main Authors: Zheng, Supei, Ouyang, Jie, Zhang, Ling, Zhang, Hongping
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Injection moulding
Machinery and processing
Moulding
Plastics
Polymer industry, paints, wood
Technology of polymers
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Summary:Level set/ghost method for weldlines in the filling stage of injection molding is introduced in this article. The algorithm is based on non-isothermal, incompressible, generalized Hele-Shaw flow of a viscous fluid. The physical controlling equation systems are numerically simulated by the general finite difference scheme. Level set/ghost method captures the location and shape of the weldlines accurately and efficiently, the controlling equations of which are discretized by the fifth order weighted essentially non-oscillatory (WENO) scheme in space and by the total variation differencing Runge-Kutta (TVD-RK) method in time. As a result, the fusion process of weldlines is simulated accurately and the analysis of flow field is given correctly. Examples verify the proposed methodology.
ISSN:0731-6844
1530-7964
DOI:10.1177/0731684407080479