June 10, 2021 8:30 a.m.–4:00 p.m. CEST

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COMSOL Day: Heat Transfer in Material Processing

See what is possible with multiphysics simulation

Join us at the Online COMSOL Day: Heat Transfer in Material Processing and find out more about modeling thermal processes and different materials (metal, composite, polymer, etc) processing applications. Learn how modeling contributes to the digitalization of the material processing industry.

Get introductions to the use of FEM simulation for thermal (convection, radiation, phase change) and CFD analysis, electromagnetic heating, optimization and metallurgical phase transformations from our application engineers and developers. Selected industry experts will provide insights into their simulation projects. You will have the opportunity to exchange ideas with colleagues interested in simulation and COMSOL developers in dedicated Tech Café sessions.

View the schedule below and register for free today.



To start, we will briefly discuss the format of the day and go over the logistics for using GoToWebinar.


Heat transfer is a key factor to include in the simulation of material processing for high-fidelity results, making multiphysics simulation not only useful but also necessary. In this opening session, we will exemplify applications where heat transfer modeling can be applied to real-life applications around polymer flow, metal processing, composite material behavior, and battery design. We will then discuss how optimization can be used to develop more energy-efficient processes and how COMSOL Multiphysics® can help to deploy ready-to-use applications to model real-world applications.


Mickael Courtois, IRDL Laboratory Université de Bretagne Sud

The presentation will show which physics need to be modeled to develop and understand processes involving molten metal, such as welding and additive manufacturing. After a quick review of the equations, some examples will be provided for different technologies already modeled. Finally, the focus will be on wire arc additive manufacturing (WAAM). For the first time, a fully coupled 3D model describes electromagnetism, heat transfer, and fluid flow in the wire, droplet, arc, and melt pool. Particular attention will be paid to the free surface description and tricks used to reduce calculations times.


Enrique Reyes Rodriguez, Université de Nantes

Well known by their lightness and their excellent thermomechanical properties, high-performance thermoplastics composites are used to manufacture parts for the aeronautics and automotive sectors. These materials have a relatively high melting point compared with other polymers, which allows non-negligible temperature differences during their processing. These temperature variations, when not properly controlled, could generate thermal stresses, shrinkage, waviness, delamination, and other thermal-related problems that could lead to total material damage or a reduction of material quality. To overcome this challenge, a thermal design methodology using COMSOL Multiphysics® and LiveLink™ for MATLAB® is proposed to determine a proper heat flux as a time and space distribution, during the different stages of a manufacturing process. The methodology, based on the conformal cooling approach, uses a combination of a deterministic inverse optimization algorithm and a stochastic particle swarm optimization algorithm implemented in LiveLink™ for MATLAB®.

Introduction to Modeling Cooling and Heating

Get an overview of the COMSOL Multiphysics® software and explore its capabilities for modeling heat transfer in material processing applications. This session will take you through the process of building and running a model that illustrates the different functions and features of the COMSOL Multiphysics® software. You will also see how you can transform models into simplified and specialized applications that can be used by engineers and scientists not familiar with simulation software.

Tech Café: Phase Change

Phase change is often present in materials processing and has effects in terms of the energy required for (or to be removed from) the process, and also in terms of the properties for the final product. COMSOL Multiphysics® provides different tools to account for phase change effects. Join this Tech Café to interactively discuss the simulation challenges associated with these effects and processes with users, COMSOL engineers, and developers.

Break for Lunch
Heat Treatment in Metal Processing

This session will introduce you to modeling the multiphysics of phase transformations and quenching of metals like steel using COMSOL Multiphysics®. With the introduction of the Metal Processing Module to the COMSOL® software product suite, it is now much easier to model solid-state metallurgical phase transformations that are affected by and dependent on other physical phenomena, as well as the resulting material behavior of the transformed metal. In addition to covering the modeling of metallurgical phase transformations and hardening, the presentation will also introduce the new Carburization physics interface and new functionality for importing material properties.

Polymer Flow and Nonisothermal CFD

This session focuses on the modeling of nonisothermal flow with conjugate heat transfer in COMSOL Multiphysics® and its add-on products. Simulations of various types of flows, ranging from incompressible flow, where buoyancy effects can be modeled using the Boussinesq approximation, to fully compressible transonic and supersonic flow, are easily set up using the predefined physics interfaces and multiphysics couplings. When turbulent flow is simulated using a RANS (Reynolds-averaged Navier–Stokes) model, turbulent heat diffusivity and conjugate heat transfer models are automatically included in the formulations. We will also address modeling flows of non-Newtonian fluids, where temperature variations may induce strong shear thinning or thickening effects in these fluids.


Heat transfer is integral to material processing and can often be the crucial factor for enabling such. This panel discussion will discuss how multiphysics simulation that includes heat transfer can improve such processes and the quality of the material being made. Experienced simulation engineers from industry will discuss with the technical product manager for the Heat Transfer Module what current trends and future expectations are envisioned within this type of modeling. The panel will also take questions and comments from the audience.

Moderator: Jean-Marc Petit, COMSOL


Simon Morville, IRT Jules Verne Violaine Le Louet, Capacités Nicolas Huc, COMSOL

Introduction to Surface-to-Surface Radiation Modeling

During this session, you will learn how to include surface-to-surface radiation in your models. In particular, you will learn how to define the surface properties and direction of the radiation transmission; use domains and layer opacity properties; and define temperature-, wavelength-, and direction-dependent properties. The session will also include a discussion of situations where radiation is most likely to play a significant role in the overall heat transfer of a material processing application.

Tech Café: Optimizing Heating and Cooling Processes

Understanding processes and improving products are two common motivations for performing simulations. It is often beneficial to replace trial & error with more systematic techniques. In this Tech Café, we will discuss parameter estimation and other optimization problems that can be solved with the Optimization Module.

Closing Remarks

COMSOL Speakers

Jean-Marc Petit
Jean-Marc Petit joined COMSOL France in 2003 and is now in charge of business development. He holds a PhD in physics from the University of Orsay at CEA Saclay. He conducted research at ESRF and contributed to R&D at L'Oréal.
Eric Favre
Eric Favre has run COMSOL France since its creation. He previously worked in the field of magnetohydrodynamics (MHD) after receiving his PhD from the Grenoble Institute of Technology.
Nicolas Huc
Nicolas Huc joined COMSOL France in 2004 and is currently the head of their development team. He is also the manager of the Heat Transfer Module. Nicolas studied engineering at ENSIMAG before receiving his PhD in living system modeling from Joseph Fourier University.
Caroline Dubois
Caroline Dubois is an applications engineer, holder of a diploma from INSA Toulouse, and a research master in fluid dynamics. Before joining COMSOL France in 2018, she worked on modeling skin burns and in the fields of logistics support and operating reliability.
Mats Nigam
Mats Nigam is the technical product manager for fluid flow at COMSOL. Prior to joining COMSOL in 2012, Mats worked in academia at MIT and Cambridge University and in the pulp and paper industry at Noss AB. He received his PhD in applied mathematics from MIT in 1999.
Mats Danielsson
Mats Danielsson joined COMSOL in 2017 as a developer specializing in structural mechanics and mechanics of materials. He earned his PhD in mechanical engineering from MIT in 2003. Before joining COMSOL, he worked in the automotive industry and applied materials research.
Kristian Ejlebjærg Jensen
Kristian E. Jensen joined COMSOL in 2018 as the product manager for the Optimization Module. He studied at the Technical University of Denmark, where he worked on topology optimization and differential constitutive equations for viscoelastic flow. He studied the combination of mesh adaptation and topology optimization at Imperial College London.
Colas Joannin
Colas Joannin joined COMSOL France in 2017 as an applications engineer. He is an engineer from École Centrale de Lyon and holds a PhD in nonlinear dynamics, accomplished with the Safran Group.
Sebastien Kawka
Sébastien Kawka is responsible for the applications group at COMSOL France. He is an alumnus of the École Normale Supérieure de Lyon and holds a PhD in theoretical physics from the University of Grenoble. He worked as a researcher at the Scuola Normale Superiore in Italy before joining COMSOL.

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COMSOL Day Details

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June 10, 2021 | 8:30 a.m. CEST (UTC+02:00)
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Invited Speakers & Panelists

Simon Morville
IRT Jules Verne

Simon Morville holds a PhD thesis obtained in 2012. It focused on the multiphysical modeling of an additive manufacturing process (LMD powder) in order to correlate the process parameters and the nozzle design to the final surface state of the components. For 6 years, he worked in the R&D department of Framatome (nuclear industry) on the multiphysical modeling of welding assembly processes. For 2 years now he has been part of the IRT Jules Verne, a research center dedicated to the development of innovative manufacturing methods for industry. Today, Simon’s work focuses on modeling additive manufacturing and welding processes.

Mickael Courtois
IRDL Laboratory, Université de Bretagne Sud

Mickael Courtois is an associate professor at Université de Bretagne Sud and IRDL CNRS Laboratory. He works on the multiphysics modeling of welding and metal additive manufacturing processes. He is also working on measurements of thermophysical properties of molten metals at high temperature.

Enrique Reyes Rodriguez
Université de Nantes

Enrique Reyes Rodriguez is a mechanical engineer specializing in the mechanical engineering of process plants for the oil & gas sector. He has a master's in computational mechanics from the University of Nantes and his professional experience has been focused on the study of mechanical vibrations, starting as a vibration technician for the oil & gas sector and then performing analysis and design of vibration systems by means of the finite element method. Following his computational background, Rodriguez is currently a PhD student in the thermal optimization of manufacturing processes for high-performance thermoplastic composites at the laboratory of thermokinetics at the University of Nantes. His PhD is funded by the IRT Jules Verne in France.

Alban Agazzi
Innovation Plasturgie Composites

Alban Agazzi holds a PhD in heat transfer, done conjointly at IPC, the French technical plastics center, and at the Nantes Thermokinetic Laboratory (LTeN). His work focuses on the simulation and optimization of heat and mass transfer in plastic and composite molding processes. Alban was recruited at the end of his PhD as an R&D project manager. He is now the manager of the computational business unit. He has been using COMSOL® for 13 years. He has developed an app called MCOOL for designing an optimized cooling system for the injection domain. He builds fluid dynamics and heat transfer models to study the behavior of the polymer during the flow. The main field of his research is about topological optimization of heat transfer to reduce cycle time during forming processes.

Patrick Namy

Patrick Namy is an engineer who graduated from ENSIMAG in 2001, earning his PhD in applied mathematics in 2004 from Joseph Fourier University. His thesis, for which he received an award, was about modeling living systems. Patrick is the founder and CEO of SIMTEC, which was created in 2006. He is passionate about mathematical and computer science applications to physics. He particularly enjoys conveying his knowledge to SIMTEC clients in order to help them become self-sufficient users of the COMSOL Multiphysics® software.

Violaine Le Louet

Violaine Le Louet is a research engineer at Capacités, a subsidiary of the University of Nantes. She did her PhD at Nantes University on the study of heat transfer during the processing of carbon fiber thermoplastic composites by laser-assisted automated fiber placement. She currently works on issues related to heat transfer in material processing, including material characterization, thermal metrology, and process simulation. The addressed problems requires both experimental and numerical expertise. Prior to that, she did a master’s degree in material science and engineering in Phelma Engineering School in Grenoble.