See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.


View the COMSOL Conference 2023 Collection

Heat Transfer and Phase Changex

Benefit of Vapor Consideration for LPBF Additive Manufacturing Process Simulation

Morgan Dal1, Julien Daligault1, Jérémie Girardot2
1Laboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, Cnam, HESAM Universite
2I2M, Arts et Metiers Institute of Technology, University of Bordeaux, CNRS, Bordeaux INP, INRAE

Simulation of laser processes are more and more efficient. In some cases, as welding and additive manufacturing, the physical phenomena are complex, multi-physics and multi-phases, thus some assumptions have to be done. For Laser Powder Bed Fusion, a laser beam melts and vaporizes the ... Read More

Challenges in the Simulation of Vacuum Processing Hardware

Juergen Weichart1, Thomas Tschirky1
1Evatec AG, Hauptstrasse 1a, CH-9477 Trübbach, Switzerland

Process Hardware for heating, etching and plasma deposition in vacuum processes on Silicon wafers or glass substrates face challenging requirements due to very shallow and extended structures. Molecular Flow calculations are used to evaluate staggered shields with the aim to protect ... Read More

Combustion Resistance of Fine Metal Parts

S. TOUZOUIRT1, M. Dal2, J. Daligault2
1Air Liquide Campus Innovation Paris, Air Liquide, 1 Chem. de la Prte des Loges, 78350 Les Loges-en-Josas, France and PIMM Laboratory, Arts et Métiers Institute of Technology (Paris), CNRS, CNAM, HESAM University, 151 Boulevard de l’Hôpital, 75013 Paris, F
2PIMM Laboratory, Arts et Métiers Institute of Technology (Paris), CNRS, CNAM, HESAM University, 151 Boulevard de l’Hôpital, 75013 Paris, France

The presence of oxygen in metal installations can influence their flammability, which leads to frequent combustion ignitions. Various studies have been done to characterize this ignition, in order to classify metals according to their degree of flammability, and to minimize the risk of ... Read More

Complete Design of a High Power Ultrasonic Flow-Cell Reactor with Special Air Cooling System

Lorenzo Spicci1
1Everywave Srl

Ultrasonic flow-cell reactors are used for many industrial applications, where fluid substrate is sonicated in a small region, where very high ultrasonic acoustic power is present. The electromechanical transducer (converter) that drive the sonotrode inside the flow-cell is designed in ... Read More

Convective Heat and Moisture Transfer Modelling in Porous Insulation for Large Thermal Storage

Alice Tosatto1, Michele Bianchi Janetti1, Fabian Ochs1
1Unit of Energy Efficient Building, Universität Innsbruck, Innsbruck, Austria

In view of an energy system based on fluctuating renewable sources, the use of thermal energy storage (TES) systems plays a crucial role. In particular, large-scale underground water-based TES represent a promising solution as demonstrated by a number of cases currently being established ... Read More

Degassing of PP Pellets in a Silo: Keeping C9 Concentrations Below the Lower Explosion Limit

R. Wesselink1
1Demcon Multiphysics, Enschede, The Netherlands

When polypropylene (PP) is produced it contains impurities in the form of dissolved gasses. These gasses can be removed by heating the material (in the form of pellets in a silo) and flushing with plenty of fresh air. However, one of the gasses is C9, which is flammable. We built a model ... Read More

Development of a Special COMSOL® Interface Based on an Alternative Model for Bentonite Re-Saturation

Michael Kröhn1, Lars Fromme2
1GRS gGmbH, Braunschweig, Germany
2Hochschule Bielefeld – University of Applied Sciences and Arts (HSBI), Faculty of Engineering and Mathematics, Bielefeld, Germany

Bentonite is a versatile material that is, among other things, envisaged in most countries worldwide for use in radioactive waste repositories to protect the waste canisters against groundwater. The thermo-hydro-mechanically (THM) coupled process of bentonite saturation is commonly based ... Read More

Direct FEM Ampacity Calculations for Submarine and Underground Power Cables

K. Bitsi1, A. I. Chrysochos1, D. Chatzipetros1
1Hellenic Cables, Athens, Greece

High-voltage power cables are vital components of power transmission systems. Submarine cables are critical power carriers between offshore wind farms and onshore ac grids. Moreover, underground cables are generally preferred over overhead installations in land applications, owing to ... Read More

Efficient Geothermal Cooling in Harsh Environments: A Combined Experimental and Modelling Approach

Mohammed Al-Azba1, Ahmed Abotaleb2
1Qatar Environment and Energy Research Institute, HBKU, Qatar Foundation, Doha, Qatar
2ICube Laboratory, Université de Strasbourg-CNRS, 67000 Strasbourg, France

In this work we present a novel approach to enhance energy efficiency in cooling intake air for air conditioning (AC) systems in harsh environments using geothermal energy. We developed a 3D finite element model to simulate the heat transfer between underground soils/gravels and cooling ... Read More

Explosive Boiling of Thin Cu Wires: Experiments and Simulations

P. Corfdir1, P. Sütterlin1
1ABB Switzerland Ltd, Segelhofstrasse 1K, 5405 Baden-Dättwil, Switzerland

The simplicity, reliability and low costs of electro-mechanical breakers have made them the workhorse for the interruption of low voltage short-circuit currents. In the presence of a short circuit, the contacts of the breaker heat up, and a bridge of molten metal forms between the pair ... Read More