Some applications in video
Ludovic principles |
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The GLOBAL analysis with Ludovic : some results |
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The process optimization |
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The LOCAL analysis with XimeX-TSE : some results |
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Le procédé bivis |
Compoundage en bivis |
Software for Twin Screw process analysis
Ludovic® and XimeX-TSE are simulation software dedicated to the corotating Twin Screw Extrusion (TSE) process.
Each of them offers to optimize the TSE process by proposing an indeep analysis of the material evolution.
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Introduction |
Ludovic proposes a GLOBAL analysis of the corotating twin screw extrusion process, for describing the material behaviour evolution all along the process. |
XimeX-TSE proposes a LOCAL analysis of the corotating twin screw extrusion process, with a details thiner analysis on the mixing areas of the TSE machine. |
Physics |
Thermo-mechanical analysis |
Thermo-mechanical analysis |
Numerical models |
1D/2D stationary |
3D Unstationary |
Focus |
GLOBAL analysis Full TSE |
LOCAL analysis Typically [4,10] L/D |
Results |
Global results (torque, power..) Distribution of thermo-mechanical results along screw profile RTD |
Global results (torque, power..) Thermo-mechanical Full 3D maps local RTD |
Computation |
~ 10 sec |
~ 10 hours |
Resources |
Laptop/desktop |
min. 16 cores // computation |
Required input |
Screw profile definition Self wipping elements Material viscosity laws |
Internal self wipping screw elements generator Arbitrary screw elements CAD files Materials viscosity laws |
XimeX : a specific focus on mixing properties
With the XimeX range, the simulation now proposes a high level of accuracy for describing the mixing capabilities of twin-screw/mixing equipments : Read more about XimeX
Ludovic is a valuable supplement to experimental work that can provide insight into optimization, troubleshooting, and scale-up challenges of melt compounding and reactive extrusion processes. The accessibility of the software to users without extensive simulation experience and rapid computation of results make Ludovic a powerful alternative to more resource-intensive simulation approaches. Simulations can be tailored to different levels of detail and sophistication providing valuable and rapid feedback throughout the development process.
A global understanding of the twin screw mechanisms:
The Ludovic® software handles all the twin screw extrusion process parameters for a simulation :
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the geometry/screw design
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the material characteristics
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the process conditions
The provided results deal with the material behaviour evolution all along the process and also energies input by the twin screw extruder.
Screening the functioning domains
Ludovic® holds an automatic Design of Experiments (DoE) tools for screening complete functioning domains. This is aimed at quickly getting the process map for identifying the requested process parameters, according to the targetted materials and the chosen screw profile.
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distribution of the termo-mechanical results (temperature, pressure, viscosity, filling ratio...) along the screw profile
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detailed energy balance of the process
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residence time analysis
XimeX-TSE for an indeep LOCAL analysis
Based on the innovative 3D FEM technology, XimeX-TSE offers a very thin analysis of the extrusion process, especially in the mixing areas of the twin-screw extruder.
Beside the classic CFD analysis, XimeX-TSE proposes a unique particles analysis aimed at quantifying the mixing efficiency of a given configuration. Elongation, erosion, breakage... of fibers/particles are computed thanks to unique Attached Properties.
A technical and scientific support
The Ludovic® software was developed by the CEMEF and INRA, upon the request of an industrial consortium in order to solve industrial process problems. It is continuously evolving to better fit the customer requirements and analyze the most complex mechanical/chemical phenomena.
The XimeX-TSE software is coming from the SCC driven Extrusion Strategic Initiative. XimeX® TSE is part of the XimeX-INTEGRAL platform, based on the CIMLIB library ( CEMEF).
Applications
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Plastic
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Pharmaceutical
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Cosmetics
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Building materials
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Explosives
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Food
The PHARMA applications with Ludovic
The new version of the Ludovic software proposes options dedicated to pharmaceutical industry with a simplify interface in order to optimize Hot Melt Extrusion (HME) process, taking into account the process AND the material specificities.