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COMSOL Conference 2025 Proceedings

Collection of Papers, Posters, and Slideshows Accepted by the Program Committee

At the COMSOL Conference 2025, engineers, researchers, and scientists from around the globe showcased their use of modeling and simulation across all major industries and in academia. Use the Quick Search tool to find a specific presentation or filter by topic or event location.

ISBN: 978-1-7364524-3-1

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2008 - Hannover
Solving Time-Dependent Optimal Control Problems in COMSOL Multiphysics
Solving Time-Dependent Optimal Control Problems in COMSOL Multiphysics

I. Neitzel[1], U. Prüfert[2], and T. Slawig[3]
[1]DFG priority program SPP 1253, Technische Universität Berlin, Berlin, Germany
[2]DFG research center Matheon, Technische Universität Berlin, Germany
[3]DFG Cluster of Excellence The Future Ocean, DFG priority progam SPP 1253, Christian-Albrechts-Universität zu Kiel, Kiel, Germany

We use COMSOL Multiphysics to solve time-dependent optimal control problems for partial differential equations whose optimality conditions can be formulated as a PDE. For a class of linear-quadratic model problems we summarize known analytic results on existence of solutions and first ... Read More

Modeling 2D and 3D of Hybrid Laser Nd:Yag - MIG Welding Processes
Modeling 2D and 3D of Hybrid Laser Nd:Yag - MIG Welding Processes

E. Le Guen[1], R. Fabbro[1], F. Coste[1], M. Carin[2], and P. Le Masson[2]
[1]LALP (CNRS)/GIP GERAILP, Arcueil, France
[2]LIMATB, Université de Bretagne Sud, Lorient, France

Hybrid laser-MIG arc welding has very interesting advantages compared to laser welding or arc welding used separately. It is known that improvement of productivity results in higher welding speeds, thicker welded materials, joint fit-up allowance, better stability of molten pool, and ... Read More

Time-Resolved Optical Tomography in Preclinical Studies: Propagation of ...
Time-Resolved Optical Tomography in Preclinical Studies: Propagation of Excitation and Fluorescence Photons.

F. Nouizi[1], R. Chabrier[1], M. Torregrossa[2], and P. Poulet[1]
[1]Laboratoire d’Imagerie et de Neurosciences Cognitives, Straßbourg, France
[2]Laboratoire des Sciences de l'Image, de l'Informatique et de la Télédétection, France

We present time-resolved methods that rely on near-infrared photons to image the optical properties and distribution of fluorescent probes in small laboratory animals. The coupled diffusion equations of excitation and fluorescence photons in highly scattering tissues were solved using ... Read More

Micro Cooling of SQUID Sensor
Micro Cooling of SQUID Sensor

B. Ottosson[1], Y. Jouahri[2], C. Rusu[1], and P. Enoksson[2]
[1]Imego AB, Gothenburg, Sweden
[2]Chalmers University of Technology, Gothenburg, Sweden

The objective of this work has been to realize a feasibility study of a cooling device for a SQUID sensor using liquid nitrogen flowing through micro channels. The design consists of an epoxy cylindrical vacuum vessel skewed by a silicon microchannel heat sink. The SQUID sensor is ... Read More

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