J. E. Toney
Pennsylvania State University Electro-Optics Center, Freeport, Pennsylvania, USA
We demonstrate the use of Comsol Multiphysics with Matlab to model signal generation in wide-bandgap semiconductor radiation detectors. A quasi-hemispherical detector design is compared with a simple, planar detector. Results show that the quasi-hemispherical design can simply and effectively compensate for the poor hole transport of most compound semiconductor materials.
3D COMSOL Multiphysics® Model of a Plate Heat Exchanger to Support a Laboratory Teaching Environment - new
N. Medeiros, W. Clark
Worcester Polytechnic Institute, Worcester, MA, USA
Chemical engineering students and practitioners need an understanding of fluid flow and heat transfer inside heat exchangers. Because the flow within plate heat exchangers is difficult to visualize, we developed COMSOL Multiphysics® simulations of plate heat exchangers for students to study alongside a physical heat exchanger in a laboratory setting. Simulative experiments allow students to ...
N. Martaj, P. Rochelle, L. Grosu, R. Bennacer, and S. Savarese
Universitè de Paris, Paris, France
Institut Jean Le Rond d'Alembert, Université Paris 6
Laboratoire LEEVAM «Environnement, Energétique, Valorisation, Matériaux», Universitéde Cergy-Pontoise
COMSOL France, 5 pl. R Schuman, 38000 Grenoble
The alternative engines of Stirling type, are engines running on "hot air", using both an external heat source and regeneration. They should be considered as an alternative for the effective conversion of renewable energy sources into work, with their theoretical yield equal to the theoretical Carnot limit. The output efficiency and the power of these engines are strongly related to the ...
Determination and Verification of the Forchheimer Coefficients for Ceramic Foam Filters using COMSOL CFD Modeling
M.W. Kennedy, K. Zhang, J.A. Bakken, R.E. Aune
Norwegian University of Science and Technology, Trondheim, Norway
Experiments have been conducted with water at velocities from ~0.015-0.77 m/s to determine the permeability of 50 mm thick commercially available 30, 40, 50 and 80 Pores Per Inch (PPI) Ceramic Foam Filters (CFF) used for liquid metal filtration. Measurements were made using two different setups, for use with the Forchheimer equation: 49 mm \"straight through\" and 101 mm diameter \"expanding ...
Chemical Engineering Department, Worcester Polytechnic Institute, Worcester, MA, USA
A laboratory exercise to learn PID controller tuning can be time consuming and taxing on the equipment. A purely equation-based, virtual controller tuning exercise might not seem relevant to real world processes. We have combined a physical process with a COMSOL Multiphysics model to teach the practical aspects of PID controller tuning. Students ran simulated experiments with COMSOL to test ...
Comparison of User vs. COMSOL® Developed Automated Installation Verification of COMSOL Multiphysics® Software
M. W. Crowell ,
 Oak Ridge National Laboratory, Oak Ridge, TN, USA
Verifying that a local software installation performs as the developer intended is a potentially time consuming but necessary step for safety related codes. Automating this process not only saves time, but can increase reliability and scope of verification compared to ‘hand’ comparisons. We now have for comparison both a user-developed tool using LiveLink™ for MATLAB® and an app (in beta) built ...
N. Petra, and M.K. Gobbert
Department of Mathematics and Statistics, University of Maryland, Baltimore County, Baltimore, Maryland, USA
The graphical user interface (GUI) of COMSOL Multiphysics offers an effective environment to get started solving problems. For reproducibility of the results, it is often desirable to explore the script-based modeling capabilities of COMSOL with MATLAB. There are also potential benefits of running COMSOL in parallel, specifically by running several computational threads in shared-memory ...
A.Weddemann, D. Kappe, and A. Hütten
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge MA, USA
Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, Bielefeld, Germany
In principal, the calculation of the magnetic state inside a magnetic object requires the evaluation of the field in the entire unbounded space. With finite element methods restricted to finite domains, commonly auxiliary domains are employed which result in a non-physical cut-off. Not only are these additional domains result in an increased number of degrees of freedom which are strictly ...
J. van Schijndel
Eindhoven University of Technology, Eindhoven, The Netherlands
In order to predict, improve and meet a certain set of performance requirements related to the indoor climate of buildings and the associated energy demand, building energy simulation (BES) tools are indispensable. Due to the rapid development of FEM software and the Multiphysics approaches, it should possible to build and simulate full 3D models of buildings regarding the energy demand. The ...
Design Optimization of an Electronic Component with an Evolutionary Algorithm Using a MATLAB-COMSOL Based Model
E. Pelster, and D. Wenger
Wenger Engineering GmbH
Electric construction components exposed to alternating high voltage have to withstand a significant amount of thermal loads and, resulting from the changes in Temperature , structural stresses. In order to achieve minimization of these loads, optimizing the geometry can be a helpful tool in the design process. In this study COMSOL is used to predict thermal and mechanical loads on a high ...