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.

Simulation of Pumping Induced Groundwater Flow in Unconfined Aquifer Using Arbitrary Lagrangian-Eulerian Method

Y. Jin[1], E. Holzbecher[1], S. Ebneth[2]
[1]Department of Applied Geology, Georg-August-University, Göttingen, Germany
[2]Hoelscher Dewatering, Haren, Germany

A novel numerical method characterizing groundwater flow in unconfined aquifer is demonstrated. In contrast to the conventional method (Dupuit approach considering horizontal flow only), hydraulic head is simulated in horizontal and vertical directions. The new approach is introduced via developing a 2-D-axisymmetric model representing the vertical cross section of the aquifer. The model solves ...

3D COMSOL Multiphysics® Model of a Plate Heat Exchanger to Support a Laboratory Teaching Environment - new

N. Medeiros[1], W. Clark[1]
[1]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 ...

Design and Analysis of Microcantilevers for Sensor Applications

R. Phadke [1], R. Pramodhini [1], A. Tiwari [2],
[1] Nitte Meenakshi Institute of Technology, Bengaluru, Karnataka, India

In this report, we present the design and analysis of microcantilevers of various shapes and materials for different applications. Here we investigate the sensitivity i.e. amount of bending of the cantilever due to same amount of force applied to each of the shape and the respective material using COMSOL Multiphysics software. In this context, we are restricted to the use of microcantilevers in ...

High Frequency Resonators Using Exotic Nanomaterials - new

B. Panchapakesan[1], M. Loeian[1]
[1]Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA

Human made mechanical resonators have been around for a thousand years. Early applications included musical instruments and chronographs operating in millihertz to kilohertz frequencies while more recent interest has turned ultra-high frequency resonators and oscillators suitable for wireless technologies, mass sensing and even biological applications. The trend has been towards small, stiff and ...

Computation of Three-Dimensional Electromagnetic Fields for an Augmented Reality Environment

A. Buchau, and W. Rucker
Institut für Theorie der Elektrotechnik, Universität Stuttgart, Germany

Augmented reality is predestined for visualization of electromagnetic fields in air or inside transparent matter. Real existing objects are studied and invisible electromagnetic fields are added as virtual objects. Hence, experts as well as students are able to connect electromagnetic fields easily with studied objects. They can concentrate on physical effects instead on reading figures. Here, ...

Introduction to COMSOL based Modeling of Levitated Flywheel Rotor

A. Pilat
AGH University of Science and Technology
Kraków, Poland

This elaboration presents a pre-study on automatic rotor construction for the flywheel energy storage system dedicated to operate in the levitation mode. The optimization profile model is used as a basic profile source. The 3D flywheel shape is generated on the base of obtained profiles. Eigenfrequencies are calculated to validate the operation on rigid mode. A steel and aluminum based ...

Several Benchmarks for Heat Transfer Problems in COMSOL Multiphysics®

S. Titarenko[1]
[1]University of Leeds, Leeds, United Kingdom

Nowadays all branches in modern science and industry tend to solve ever complicating problems. As the result the computational time increases considerably and it become very important to reduce the processing time and use available resources more efficiently. Parallelizing problem proves itself as efficient way to overcome the described problem. In the poster we compare different methods of ...

Simulation of Nanopores in Capacitive Energy Extraction Based on Double Layer Expansion (CDLE)

E. Ruiz-Reina [1], F. Carrique [2], A.V. Delgado [3], M.M. Fernández [3],
[1] Department of Applied Physics II, University of Málaga, Málaga, Spain
[2] Department of Applied Physics I, University of Málaga, Málaga, Spain
[3] Department of Applied Physics, University of Granada, Granada, Spain

Capacitive energy extraction based on double layer expansion (CDLE) is a new method devised for extracting energy from the exchange of fresh and salty water in porous electrodes. First suggested by D. Brogioli, it is enclosed in a group of emergent technologies jointly known as Capmix methods. The CDLE technique is based on the fact that the capacitance of the electric double layer (EDL) ...

Frequency Response Analysis of a Printed Circuit Board

S. Mathmann[1]
[1]University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics, Bielefeld, Germany

During a practical course the students compare the measured frequency response of an assembled PCB (Printed Circuit Board) with the simulated data out of COMSOL Multiphysics® software. For this the whole PCB with all components are feed in the simulator and afterwards an eigenfrequency-analysis is carried out. To simplify the effort to do this, a COMSOL® app was created. As result the user ...

Stability Analysis of ALE-Methods for Advection-Diffusion Problems

A. Weddemann, and V. Thümmler
Bielefeld University, Germany

ALE-methods are frequently used to solve systems of partial differential equations (PDEs) on moving domains. The main idea of these methods is to incorporate the time evolution of the domain into the equations. However, the motion of the domain with respect to time induces convective fluxes in the resulting equations. These can lead to stability problems of the numerical method if they become ...