October 27, 2022 10:00 a.m.–3:30 p.m. BST

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COMSOL Day: Nuclear Fusion

See what is possible with multiphysics simulation

There has recently been a focus on solving short-term energy supply problems in the most expedient and efficient way using modern technologies and immediate research resources. However, when it comes to long-term plans for improving energy sustainability in light of climate change, it is important to consider new ways of generating energy, such as using nuclear fusion. While long researched in large government projects, nuclear fusion technology is now also becoming prominent among smaller companies. COMSOL Day: Nuclear Fusion will offer a look at how nuclear fusion is being used and studied in both settings.

Join us to learn from keynote speakers representing both government and industry as well as sessions held by COMSOL staff covering areas where simulation and multiphysics modeling are highly important. Topics include electromagnetic coils (tokamaks), system heat transfer control and effects, superconductors, and magnetohydrodynamics (liquid metal). Plus, you will see the capabilities of COMSOL Multiphysics® for equation-based modeling and get a closer look at the Model Builder and Application Builder. Register for this free, 1-day online event below.


10:00 a.m.

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

10:15 a.m.
Trends in Nuclear Fusion
10:45 a.m.
11:00 a.m.
Keynote Speaker
11:20 a.m.
11:30 a.m.
Keynote Speaker
11:50 a.m.
12:00 p.m.
Break for Lunch
1:00 p.m.
Parallel Session
Magnets, Coils, and Superconductors

The behavior of nuclear fusion reactors involves highly extreme and difficult-to-model physical phenomena. Large electromagnetic fields are created by the reactor coils and by currents in the plasma. These fields directly affect the plasma dynamics while influences from reactor walls can also affect the fusion process. Modeling and simulating all of these phenomena is crucial in nuclear fusion reactor design.

COMSOL Multiphysics® is highly effective for modeling such phenomena because it allows you to control the underlying theoretical equations to suit your application. In particular, superconducting coils — which are strongly nonlinear and often made out of thin metal sheets — can be modeled as embedded boundary equations.

In this session, we will present and discuss the basic functionality within the COMSOL® software for modeling coils and other magnetic devices as well as touch upon more advanced topics as well.

Magnetohydrodynamics and Heat Transfer

A liquid metal blanket is crucial for cooling and energy extraction in a nuclear fusion reactor. Multiple physical phenomena are involved in these processes: not only heat transfer and liquid metal flow but also Lorentz forces that affect the magnetic field from the coils. Motion-induced electric currents in the metal will, in turn, affect the magnetic fields, calling for a self-consistent magnetohydrodynamic approach.

With its advanced multiphysics and equation-based modeling capabilities, COMSOL Multiphysics® is ideally suited for simulating such phenomena. You can make use of these advanced capabilities to freely couple the participating physics and manipulate the underlying equations.

In this session, we will present and discuss the functionality of the COMSOL® software for modeling magnetohydrodynamics and heat transfer. We will demonstrate with examples of the pumping and general fluid flow of liquid alkali metals, their heat transfer abilities, and the effects from other physics.

1:30 p.m.
1:45 p.m.
Keynote Speaker
2:05 p.m.
2:15 p.m.
Keynote Speaker
2:35 p.m.
2:45 p.m.
Parallel Session
Charged Particle Tracing in Magnetic Fields

High-energy ions like hydrogen and deuterium nuclei as well as alpha particles all interact with the magnetic field in a nuclear fusion reactor to exhibit intricate particle orbits. Being able to model and simulate such phenomena is crucial to understanding the processes and operation of a nuclear fusion reactor.

COMSOL Multiphysics® supports relativistic and classical charged particle tracing in the electromagnetic fields created by coils and plasma currents. From this, phenomena such as focusing, confining, and removing charged particles from the reactor can be modeled and simulated.

In this session, we will present the particle tracing functionality in the COMSOL® software and show how it is used to compute charged particle orbits in a generic fusion device.

Magnetomechanics and Lorentz Forces

Strong magnetic fields from the coils of a nuclear fusion reactor affect the structural properties of all equipment used to build the reactor, as well auxiliary structures, instruments, and other units outside of the reactor walls, through Lorentz forces. These pose formidable design challenges involving the multiphysics behavior of magnetics and solid mechanics.

COMSOL Multiphysics® offers advanced capabilities for modeling and simulating magnetomechanical materials and behavior that go beyond traditional magnetics and rigid body mechanics. The strongly coupled and nonlinear characteristics inherent to such modeling can be set up and solved in a flexible and intuitive way.

In this session, we will present and discuss the magnetomechanics modeling capabilities within the COMSOL® software, where Lorentz and plasma-induced forces on the ferromagnetic strain on design components are considered.

3:15 p.m.
3:30 p.m.
Closing Remarks

COMSOL Speakers

Nathaniel Davies
Technical Manager

Nathaniel Davies joined COMSOL in early 2020 as an applications engineer specializing in electromagnetism He studied at Oxford University, completing an undergraduate degree and PhD in condensed matter physics with a research specialism in novel magnetic and superconducting materials.

Caroline Harfield
Commercial Sales Manager

Caroline Harfield joined COMSOL in December 2014 as a technical account manager. She studied theoretical physics at University College London before doing a DPhil at the University of Oxford in biomedical engineering. She researched the theoretical modeling of ultrasound contrast agents for drug delivery and bio sensing applications.

Robbie Balcombe
Technical Director

Robbie Balcombe works as a technical team director at COMSOL. He graduated from the University of Strathclyde in 2007 with a MEng in aero-mechanical engineering and then carried out his PhD in the area of numerical modeling of rolling contact fatigue at Imperial College London.

Charlie Johnson
Applications Engineer

Charlie Johnson is an applications engineer at COMSOL UK, specializing in electromagnetics simulations. She holds an MPhys from the University of Edinburgh and a PhD from the University of Bristol, with both focused on computational and mathematical physics.

Magnus Olsson
Technology Director, Electromagnetics

Magnus Olsson joined COMSOL in 1996 and currently leads development for the electromagnetic design products. He holds an MSc in engineering physics and a PhD in plasma physics and fusion research. Prior to joining COMSOL, he worked as a consulting specialist in electromagnetic computations for the Swedish armed forces.

Register for COMSOL Day: Nuclear Fusion

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COMSOL Day Details

Local Start Time:
October 27, 2022 | 10:00 a.m. BST (UTC+01:00)
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