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Accelerating nonlinear MEMS simulations with the harmonic balance method

See how harmonic balance is leveraged for solving nonlinear periodic problems in frequency domain for quicker, more precise results without transient analysis.

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Multiphysics Simulation in Fusion Energy Development

Discover how Gauss Fusion is rethinking superconducting coils with demountable designs, and why advanced multiphysics simulation is central to making fusion power a reality.

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Read the key takeaways

Introduction to the guest

Tommaso Bagni is a Superconducting Magnet Engineer at Gauss Fusion. With over a decade of experience in applied superconductivity and applied physics, Tommaso works on developing the superconducting magnets that sit at the very heart of fusion reactors. His focus today is on creating demountable superconducting coils—a new approach aimed at solving some of the toughest manufacturing, transport, and maintenance challenges in fusion power plants.

In this episode...

We talk about how simulation supports the design of these complex coils—from electromagnetic and thermal analyses to quench protection—and what’s still missing in today’s tools. We also explore how Gauss Fusion is tackling industrial-scale challenges, where AI and machine learning might help in the near future, and what signals to watch for as fusion moves closer to reality.

Key takeaways

Mission

Gauss Fusion aims to industrialize fusion in Europe and build a commercial power plant by the 2040s using stellarator technology.
Superconducting magnets

These generate the fields needed to confine plasma at hundreds of millions of °C, enabled by materials cooled to 5–20 K that carry immense currents.
Coil complexity

Stellarator coils are 3D-shaped, massive, and extremely difficult to manufacture, transport, and maintain.
Demountable coils

Gauss Fusion’s modular design breaks coils into lighter pieces, simplifying construction, transport, and repairs.
Maintenance advantage

Instead of replacing an entire coil, individual segments can be swapped, saving time and hundreds of millions over decades.
Simulation’s role

Multiphysics simulations guide design decisions—covering electromagnetic forces, thermal contraction, helium cooling, and quench protection.
Progressive approach

Full-plant simulations are still too costly, so engineers start simple, validate with experiments, and add complexity step by step.
Emerging tech

Physics-informed neural networks and AI/ML could speed up simulation and bridge scale gaps in coming years.
Signs of real progress
Successful tech demonstrations and rising public and private funding suggest fusion is closer to reality than the old “always 20 years away” joke implies.

 

Listen to the full episode on YouTube

0:00 Introduction
1:12 Mission of Gauss Fusion
1:49 Role of superconducting magnets is stellarators
2:48 The unique approach of Gauss Fusion
6:12 The role of simulation
9:06 Are traditional tools enough?
11:22 One thing to improve
12:53 Design workflow
15:47 Emerging technologies
18:03 The role of AI
19:10 Future outlook of fusion energy

Resources

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Modelling and analyzing non-insulated HTS stellarator coils with Quanscient Allsolve

See how a cloud-based approach can be utilized for improved HTS simulation — real-life case example.

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Accelerating fusion reactor design with cloud-based multiphysics simulations

Download the PDF summary of our webinar on fusion reactor design, featuring Dr. Nicolò Riva, Magnet Engineer at Proxima Fusion.

Download the PDF summary →