Technical Papers and Presentations

Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Design of Small-Scaled de Laval Nozzle for IGLIS Experiment

E. Mogilevskiy[1], R. Ferrer[1], L. Gaffney[1], C. Granados[1], M. Huyse[1], Yu. Kudryavtsev[1], S. Raeder[1], P. Van Duppen[1]
[1]KU Leuven, Instituut voor Kern- en Stralingsfysica, Leuven, Belgium

De Laval nozzles are used in supersonic aerodynamical tubes and engines. They are also employed for the production of cold gas jets to be used in chemical reactions studies. Recently, cold gas jets have been proposed of In-Gas Laser ionization Spectroscopy (IGLIS) The nozzle has a converging and a diverging part with a throat between them. High gas pressure and temperature, and low velocity are ...

Flow Analysis and Optimization of a Hierarchical Plate Heat Exchanger for an Adsorption Heat Pump

E. Tempfli[1], F.P. Schmidt[1]
[1]Karlsruhe Institute of Technology (KIT), Fluid Machinery (FSM), Karlsruhe, Germany

The paper investigates the hydrodynamic performance of a hierarchical parallel channel network for the objective of optimal thermal coupling to heat released in the adsorption processes, as in adsorption heat pumps. More specifically, the uniformity of the fluid flow over the network is improved by optimizing the topology of the manifold channels of the two hierarchical levels. For this purpose a ...

Nonlinear Computational Homogenization Experiments

G.E. Stavroulakis[1], K. Giannis[1], G.A. Drosopoulos[2], M.E. Stavroulaki[1]
[1]Technical University of Crete, Chania, Greece
[2]Leibniz University, Hannover, Germany

Numerical homogenization is based on the use of finite elements for the description of average properties of materials with heterogeneous microstructure and composites. The Representative Volume Element (RVE) of a masonry is solved with COMSOL Multiphysics®. It consists of linearly elastic bricks and elastoplastic mortar joints. A parametric analysis is applied for increasing loading. Results ...

Hardware-Efficient Parallelized Optimization with COMSOL Multiphysics® and MATLAB®

T. Frommelt[1], R. Gutser[1]
[1]SGL Carbon GmbH, Meitingen, Germany

Today, new processors provide increasing number of cores at rather constant clocking frequency. In sequential optimization algorithms, the forward model simulation is typically accelerated by multiple cores (shared-memory parallelization, SMP), which provides only limited speed-up and hardware efficiency. However, the Comsol Multiphysics® license includes parametric design capability allowing ...

Simulating Organogenesis in COMSOL Multiphysics®: Parameter Optimization for PDE-based Models

D. Iber[1], D. Menshykau[2], P. Germann[2], L. Lermuzeaux[2,3]
[1]D-BSSE, ETH Zurich, Switzerland, SIB, Basel, Switzerland
[2]D-BSSE, ETH Zurich, Basel, Switzerland
[3]Department of Bioengineering, University of Nice-Sophia Antipolis, Nice, France

Morphogenesis is a tightly regulated process that has been studied for decades. Previously we developed data-based mechanistic models for a range of developmental processes with a view to integrate the available knowledge and to better understand the underlying regulatory logic. In our previous papers on simulating organogenesis in COMSOL Multiphysics® we discussed methods to efficiently solve ...

Geometric Modeling and Numerical Simulation of Airfoil Shapes Using Integrated MATLAB® and COMSOL Multiphysics

A. Safari[1], H. Lemu G.[1], H. Severson[1]
[1]University of Stavanger, Stavanger, Norway

This paper proposes a framework for an efficient integration between geometric modeling program and analysis tool for a coming automated aerodynamic design optimization mission. This demand can be addressed by using both in-house codes and commercial software which have the good ability of live-link and efficient integration. In this study, the mathematical modeling of a turbomachinery airfoil ...

Optimizing Inductor Winding Geometry for Lowest DC-Resistance using COMSOL Multiphysics® with LiveLink™ for MATLAB®

H. Schneider[1], T. Andersen[1], J. D. Mønster[1], M. P. Madsen[1], A. Knott[1], M. A. E. Andersen[1]
[1]Technical University of Denmark, Lyngby, Denmark

An optimization routine is presented to optimize a hybrid winding geometry for a toroid inductor in terms of the DC-resistance. The hybrid winding geometry consist of bended foil pieces connected through traces in a PCB. MATLAB® is used to create a GUI that visually plots the winding using input parameters such as core dimensions, number of turns, clearance between windings, and the winding ...

3D Dynamic Linear Electromagnetic Actuator Modeling and Simulation

O. Craciun[1]
[1]ABB AG, Ladenburg, Germany

Single coil actuators are representing one important component of ABB’s medium voltage reclosers. Their performance is strongly influenced by the considered material properties as well as by the electronic control units’ properties that will power the actuator. Therefore, this paper focuses on electromagnetic actuators modeling and simulation in COMSOL Multiphysics®.

COMSOL Multiphysics® Simulation Integrated into Genetic Optimization

V. Longinotti[1], S. Di Marco[1], S. Pistilli[1], F. Costa[1], M. Giusti[1], G. Gammariello[1], I. Gison[1], G. Latessa[1,2], D. Mascolo[2], A. Buosciolo[1]
[1]Altran Italia, Roma, Italy
[2]Consorzio DeltaTi Research, Milano, Italy

The main topic of this paper is the development of an innovative tool that can be applied in a wide range of complex problems, to simulate, optimize and improve system design especially when dealing with huge numbers of parameters and constraints. The new methodology is obtained by joining the power of COMSOL Muliphysics® simulation with the modern optimization approach of genetic algorithms. ...

Singlet Oxygen Modeling for PDT Incorporating Local Vascular Oxygen Diffusion

T. C. Zhu[1], B. Liu[1]
[1]University of Pennsylvania, Philadelphia, PA, USA

Singlet oxygen (1O2) is the major cytotoxic agent that kills cells during photodynamic therapy (PDT). Based on a previously-developed model, the distance-dependent reacted 1O2 can be numerically calculated using finite-element method. We improved the model to include microscopic kinetic equations of oxygen diffusion from uniformly distributed blood vessels to the adjacent tissue. The blood vessel ...

Quick Search

1 - 10 of 28 First | < Previous | Next > | Last