研究開発におけるマルチフィジックスシミュレーションの具体例

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COMSOL コンファレンス 2020 論文集を見る

Computational Fluid Dynamicsx

Multiphysical Optimization of the Next Generation of Energy Efficient High Temperature Furnaces

Karl-Heinz Leitz1, Bernhard Valentini1
1PLANSEE SE, Metallwerk-Plansee-Straße 71, 6600 Reutte, Austria

To achieve the goals of the Paris Agreement and limit global warming below 2 K compared to pre-industrial level, significant energy savings in all fields of industries will be required. One example of energy intensive processes in industrial fabrication is heat treatment. The applied ... 詳細を見る

Multiphysical Study of Copper Laser Welding Process Stability Using the COMSOL® Application Builder

J. Daligault1, M. Dal1, M. Sawannia 2, C. Hagenlocher2, R. Weber2, S. Touzouirt1
1PIMM Laboratory, Arts et Métiers Institute of Technology (Paris), CNRS, CNAM, HESAM University, 151 Boulevard de l’Hôpital, 75013 Paris, France
2Institut für Strahlwerkzeuge (IFSW), University of Stuttgart, Pfaffenwaldring 43, 70569 Stuttgart, Germany

A numerical model of laser welding process applied on highly optically reflective and thermally conductive materials such as copper has been developped. The latter considers multiphysical couplings of CFD, heat transfers and phase-field representation to account for topological ... 詳細を見る

Multiphysics Modeling Results for the High Flux Isotope Reactor to Support its LEU Conversion

Prashant K. Jain1, Marta Sitek2
1Oak Ridge National Laboratory
2Argonne National Laboratory

Ongoing engineering design studies at Oak Ridge National Laboratory are exploring the feasibility of converting the High Flux Isotope Reactor (HFIR) from highly enriched uranium (HEU) to low-enriched uranium (LEU) fuel. HFIR is a pressurized light water-cooled and moderated research ... 詳細を見る

Numerical Calculations of Gas Flows in COMSOL Multiphysics® for Nuclear Physics Studies

A. Zadvornaya1
1II. Physikalisches Institut, Justus-Liebig-Universität Gießen, 35392 Gießen, Germany

Studying the properties of nuclei produced in various types of nuclear reactions at accelerator facilities is challenged by small production yields and short half-lives of isotopes of interest, therefore making high efficiency and fast timing essential parameters of the experimental ... 詳細を見る

Numerical Modeling of Bentonite Erosion due to Sedimentation in Sloping Fractures

Virginia Cabrera1, Arnau Pont1, Andrés Idiart1, Patrik Sellin2
1Amphos 21 Consulting S.L., Barcelona, Spain
2SKB, Solna, Sweden

The study of bentonite erosion mechanisms in fractures is a problem of maximum interest to understand the long-term performance of the engineered barrier in deep geological repositories of spent nuclear fuel. In this context, erosion due to shear by seeping water, sedimentation due to ... 詳細を見る

Numerical Simulation of the Laser Cutting Process for Dismantling

R. Meillour1, M. Courtois2, M. Carin2, I. Doyen1, C. Nahed1
1CEA
2IRDL

Laser cutting process is usually employed in machining process, however it is also applied for dismantling nuclear facilities. Contrary to mechanical processes where tools wear out quickly and are often renewed, laser cutting process is a contactless approach, therefore there is no ... 詳細を見る

Numerical Simulation of Thermal Resistance and Heat Transfer Coefficients of Textile Structures

Aušra Gadeikytė1, Rimantas Barauskas1
1Kaunas University of Technology, Department of Applied Informatics, Kaunas, Studentu Str. 50-407, LT-51368, Lithuania

This study focuses on the prediction of thermal comfort properties such as the heat transfer coefficient, and thermal resistance coefficient of textiles structures with additional ventilation. The input mass flow rate 0.2 dm3/min and 0.8 dm3/min were taken into account. It should be ... 詳細を見る

Optimization of the Oxygen Supply in Dynamic Cell Cultures

P. Elter1, E. Landrock-Bill1, C. Moseke1
1University of Applied Sciences Mittelhessen, Gießen, Germany

In many medical and biotechnological applications, cells are grown in dynamic cell cultures. Usually, the cells are cultivated on a scaffold with a complex channel structure through which the nutrient fluid flows and into which the cells can grow. However, a known problem is that the ... 詳細を見る

Simulating Condensate Layers on Thermal Bridges in Train Walls

Felix Lüönd1, Thomas Graf1, Marc Achermann1
1Lucerne University of Applied Sciences

Using the COMSOL Multiphysics® software with the Heat Transfer Module, we calculated coupled heat and moisture transport to simulate the amount and distribution of condensed moisture in a train wall, with a special focus on the surface of thermal bridges. We tested two approaches to ... 詳細を見る

Simulation Based Design of a Bladeless Centrifugal Flow Compressor

Ingo Schaarschmidt1, Philipp Steinert1, Andreas Schubert1
1Chemnitz University of Technology, Chemnitz, Saxony, Germany

The bladeless centripetal flow turbomachinery or disc turbine was invented by Nikola Tesla with the aim to realize a turbine with higher efficiency and simplicity compared to the state of the art at that time. Unlike conventional turbines, the disc turbine does not use rotor blades. ... 詳細を見る