DIGITAL INNOVATION | SIMULATION
geometry and screw design, material characteristics and process conditions. Results deal with material behaviour all along the process and the energy input by the twin screw extruder. It offers automatic Design of Experiments (DoE) tools that provide a process map for the requested process parameters, materials and the chosen screw profile. Outcomes include thermo-mechanical results, such as temperature, pressure, viscosity and filling ratio along the screw profile, as well as detailed energy balance of the process and residence time analysis. Based on 3D FEM technology, XimeX-TSE
provides analysis of the extrusion process itself, particularly in the mixing areas of the twin-screw extruder. In addition to CFD analysis, XimeX-TSE offers particle analysis aimed at quantifying the mixing efficiency for any given configuration, including elongation, erosion and breakage of fibres and particles.
Faster CFD simulation Germany-based IANUS Simulation has developed a system for fast and informative 3D CFD flow simulation in extrusion dies and screws. The company says that, compared to costly experimental investigations, a 3D CFD flow simulation can be implemented quickly and allows detailed insight into the process. Most importantly, this allows process optimisation in the very early stages of development. The company says that problems that can be quickly identified in this way include dead zones, hotspots, turbulences, high dwell times and inefficient design. The 3D CFD simulations offered by IANUS
Simulation not only optimise dies but also enable screws to be designed and configured optimally in both single and twin screw machines. Simulations can identify temperature peaks, energy input or the shear distribution of the most diverse screws. This allows determination of the optimal transition into the die, a comparison of the material stress and optimal screw design. The specifically-generated code Extrud3DPro is based on 3D FEM (FeatFlow). This enables the CFD flow simulation to be depicted in 3D and at high resolution. Other benefits of the approach include no trial-and-error or quick calculations, as well as easy handling without any initial training. No additional personnel and material costs are required, which the company says means low investment risk and quick amortisation. The system also offers higher product and process quality, it says. It is now around one year since US-
headquartered engineering simulation software specialist ANSYS acquired Granta Design, a
42 COMPOUNDING WORLD | March 2020
UK-based provider of materials information technology originally spun out of Cambridge University. The acquisition expanded its portfolio in this area, providing access to material intelligence and data that is critical to successful engineering simulations. ANSYS says Granta will continue its open ecosystem, allowing it to integrate with a wide range of leading product lifecycle management, CAD and computer-aided engineering solutions. Ansys provides a full range of engineering
simulation tools, including its Polyflow computa- tional fluid dynamics solution. This uses a mesh superimposition technique to allow detailed 3D modelling of behaviour in a broad range of applications, including dies and single and twin screw extruders. Granta Design’s main products are the Granta MI enterprise materials information management system and CES Selector, which enables users to explore the impact that different materials have on the behaviour of their products. The company also develops CES EduPack, a teaching resource for materials topics in engineering, science, process- ing and design which is used by more than 1,000 universities worldwide.
Engineering materials “With materials engineering becoming an increasingly important aspect of product development, our customers require high quality and comprehensive materials information for accurate simulation results. Integrating Granta’s solutions into the ANSYS portfolio will provide a seamless user experience – and enable our customers to innovate like never before,” says Shane Emswiler, ANSYS Vice President and General Manager. ANSYS Granta has already released a new
product providing fast-start access to its materials data management technology for design and simulation teams within the ANSYS 2020 R1 release of its engineering simulation. ANSYS Granta MI Pro is a new fast-start materials data management solution that draws upon the technology used in the pre-existing Granta MI Enterprise, which supports enterprise-wide management of materials information at hundreds of major engineering enterprises globally.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.scconsultants.com �
www.ianus-simulation.de �
www.ansys.com �
www.grantadesign.com
www.compoundingworld.com
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