Modelling surface tension with smoothed particle hydrodynamics in reactive rotational moulding

Abstract

a b s t r a c tReactive Rotational Moulding (RRM) is the best process for producing large hollow plastic parts without weld lines. Constant quality in technical parts requires the process to be mastered by controlling on-line the main physical phenomena. However, the main drawback of RRM is poor control of the process due to the high number of influent parameters. In these conditions, the optimization of the process is quite complex. The aim of this work is to simulate the reactive fluid flow during RRM with Smoothed Particle Hydrodynamics (SPH) solver in two dimensions (2D) and three dimensions (3D) taking into account surface tension force. To implement this force, the interface is tracked explicitly using algorithm developed by Barecasco et al. (2013) and Terissa et al. (2013) and the reconstruction of curve or surface boundary by different interpolation or surface construction technique with Lagrangian interpolation and fitting circle methods in 2D and spherical regression in 3D, respectively.

Conventional rotational molding process and aerodynamic characteristics of an axial-flow hollow blades rotor

“…However, this control is still perfectible today, because of the sheer number of influence factors. At the PIMM and DynFluid laboratories, we develop a tool for numerical simulation of rotational molding processes [20]. The SPH-solver-Smoothed Particle Hydrodynamics Solver-incorporates in its physical modeling the results from our experimental work (Fig.…”