Sehen Sie, wie die Multiphysik-Simulation in Forschung und Entwicklung eingesetzt wird

Ingenieure, Forscher und Wissenschaftler aus allen Branchen nutzen die Multiphysik-Simulation, um innovative Produktdesigns und -prozesse zu erforschen und zu entwickeln. Lassen Sie sich von Fachbeiträgen und Vorträgen inspirieren, die sie auf der COMSOL Conference präsentiert haben. Durchsuchen Sie die untenstehende Auswahl, verwenden Sie die Schnellsuche, um eine bestimmte Präsentation zu finden, oder filtern Sie nach einem bestimmten Anwendungsbereich.


Sehen Sie sich die Kollektion für die COMSOL Conference 2023 an

Transport Phenomenax

Simulation-Based Sensitivity Analysis of the Direct Ammonia Fuel Cell Operating Conditions

Erno Kemppainen1, Rutger Schlatmann1, Sonya Calnan1
1Helmholtz-Zentrum Berlin, Berlin, Germany

Ammonia is studied both as a hydrogen carrier and as a fuel for renewable energy infrastructure. An important advantage of ammonia compared to carbon-based fuels is that it can be oxidized without greenhouse gas emissions, producing only N2 and water. Direct ammonia fuel cells (DAFCs) ... Mehr lesen

Modelling of Desaturation/Resaturation of Geological Repository Barriers Considering Gas Generation

A. Narkuniene1, P. Poskas1, R. Kilda1
1Lithuanian Energy Institute, Kaunas, Lithuania

Geological repository for highly radioactive waste disposal is a system of engineered and natural barriers. The objective of this system is to contain and isolate waste and protect the environment and humans from ionizing radiation. For the evaluation of performance of engineered ... Mehr lesen

Reinforcement Bars Corrosion in a Carbonated Concrete

Bruno Chiné1, Ronald Jiménez Salas1, Rommel Cuevas Kauffmann2
1School of Materials Science and Engineering, Costa Rica Institute of Technology Cartago, Costa Rica
2School of Construction Engineering, Costa Rica Institute of Technology Cartago, Costa Rica

In the construction sector, the concrete and the steel bars represent still the key components, although they are very vulnerable by the atmospheric agents, as in the case of their degradation caused by corrosion. The value of the concrete carbonation may enhance the corrosion around the ... Mehr lesen

Modelling of Interfacial Charges and Kinetics of Dye-Sensitized Solar Cells Photoanodes

Wasiu Abidemi Hamzat1, Dmitry Momontenko1, Gunther Wittstock1
1Chemistry Department, Carl von Ossietzky University of Oldenburg, D-26111, Germany

In this study, we attempted to develop a simulation to better understand the kinetic of the dye regeneration process in photoanodes of dye-sensitized solar cells (DSSCs). For that purpose, a numerical model was developed using finite element simulation in COMSOL Multiphysics®. The ... Mehr lesen

Thermal Conduction in Anisotropic Granular Mixtures

Flora Lebeda1, Markus Retsch1
1University of Bayreuth, Bayreuth, Germany

With the ongoing electrification of vehicles as well as rapid digitalization, thermal management is on everyone´s lips. This includes the use of ever-better materials, specifically tailored regarding their thermal properties. To fine-tune the thermal conductivity of a material, composite ... Mehr lesen

3-D Modeling of Light, Flow, Mass and Heat Transfer in Coral Colonies

Martinez Jimenez Fernan David1, Murthy Swathi2, Picioreanu Cristian1, Kühl Michael2
1King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center, Biological and Environmental Science and Engineering Division, Thuwal 23955-6900, Saudi Arabia
2Marine Biology Section, Department of Biology, University of Copenhagen, Strandpromenaden 5, 3000 Helsingør, Denmark

Corals are symbiotic marine organisms greatly dependent on the dynamic gradients of light, temperature and chemical species, all affected by the water flow in their surroundings. We developed a multiphysics modelling approach to simulate the microscale spatial distribution of light, ... Mehr lesen

2-D Ion Transport Modelling of Water Desalination by RO System Considering the Real Membrane Effect

Martinez Jimenez Fernan David1, Blankert Bastiaan1, Picioreanu Cristian1
1King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering Division (BESE), Thuwal 23955-6900, Saudi Arabia

Modern composite membranes for reverse osmosis (RO) and nanofiltration (NF) have an ultrathin polyamide active layer (~100 nm) that performs the ion separation. Current theoretical models explain solute and water fluxes by computing concentration and potential gradients developed in one ... Mehr lesen

A Multiscale Approach to Simulate Vacuum Drying of a Packed Bed of Spray-Frozen Particles

Lorenzo Stratta1, Roberto Pisano1, Merve Betul Adali1, Gianluca Boccardo1, Antonello Barresi1, Agnese Marcato1, Raffaele Tuccinardi1
1Politecnico di Torino, Torino, Italy

Preservation of biopharmaceuticals by spray freeze-drying is of great interest as it involves gentle drying and can be easily integrated with continuous manufacturing strategies. The drying of packed beds have been extensively studied experimentally, but a detailed mathematical model of ... Mehr lesen

Proton Enrichment and Surface Charge Dynamics in pH-Responsive Nanopores

Dominik Duleba1, Robert P. Johnson1
1University College Dublin, Dublin, Ireland

The acid-disassociation of surface groups generates the surface charge that drives fundamental nanoscale ion transport behaviors, such as ion current rectification in nanopores. Ion current rectification can be utilized for high sensitivity label-free sensors. The disassociation of ... Mehr lesen

Beyond the limits of mass transfer: How pillar electrodes influence electrochemical reactors

Michiel De rop1, Jonas Hereijgers1, Tom Breugelmans1
1University of Antwerp, Antwerp, Belgium

Electrochemistry is inherent a surface process, requiring the transport of reagents towards the electrode surface. In electrochemical reactors this typically results in mass transfer limitation problems, limiting the yield and efficiency of the reactor. While the academic community is ... Mehr lesen