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Abstract

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.

Keywords

level set method ghost fluid method WENO scheme TVD-RK method weldlines fusion process.

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Dynamic Simulation of Fusion Process and Analysis of Flow Field

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