Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
This presentation gives an account of how COMSOL Multiphysics® software has helped to accelerate research and development. It has been used to simulate energy systems such as fuel cells, biomedical systems such as hydrogels and human skin, and monolithic catalytic converters. Each of these systems requires a mathematical model that can accurately represent the relevant physics, and which can be ...
S. Carcangiu, B. Cannas, G. Concu, N. Trulli
Department of Electric and Electronic Engineering, University of Cagliari, Cagliari, Italy
Department of Civil Engineering, Environmental and Architecture, University of Cagliari, Cagliari, Italy
Department of Architecture and Planning, University of Sassari, Alghero, Italy
An experimental program has been developed, with the purpose of evaluating the reliability in building diagnosis and characterization of an integrated analysis of several parameters related to heat transfer process through the building material. The Infrared Thermography Technique (IRT) has been applied. Experimental measurements have been carried out on a concrete structure with an inside ...
Quantum Mechanics Applications Using the Time Dependent Schrödinger Equation in COMSOL Multiphysics® Software
A. J. Kalinowski ,
 University of Connecticut, East Lyme, CT, USA
The paper illustrates the use of COMSOL for obtaining the quantum mechanics wave function Ψ(x,y,z,t) as a solution to the time dependent Schrödinger equation. Once having Ψ(x,y,z,t), it can be used to compute the probability of a particle being in a specific zone within the spatial field under consideration. Two problems are solved to illustrate solving Schrödinger's equation. Firstly, a simple ...
D. Iber, D. Menshykau, P. Germann, L. Lermuzeaux[2,3]
D-BSSE, ETH Zurich, Switzerland, SIB, Basel, Switzerland
D-BSSE, ETH Zurich, Basel, Switzerland
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 ...
E. Licon, S. Casas, A. Alcaraz, J.L. Cortina, C. Valderrama
Universitat Politécnica de Catalunya, Barcelona, Spain
Ammonia separation from water by membrane contactor was simulated on transient state and compared with experimental data. Aqueous low concentrated solution of ammonium with high pH has been pumped inside the hydrophobic hollow fibers, acid solution in the outside part. The system is in closed loop configuration. In order to simulate the separation process, equations were developed considering ...
Weak Form & LiveLink™ for MATLAB® Based Modified Uzawa Method For Solving Steady Navier-Stokes Equation - new
H. Sheng, S. Zhu
Shanghai Jiaotong University, Minhang, Shanghai, China
We demonstrate a simple example about how to design my own algorithm for Navier-Stokes equation by weak form PDE and LiveLink™ for MATLAB®. After the computation, we get the same solution as other FEM packages (FreeFEM++ & FeniCs) at each iterative step, and we can see the Navier-Stokes equation’s solution at error between each step. This attempt gives algorithm researchers a hint or a ...
A.W.M. van Schijndel
Eindhoven University of Technology, Eindhoven, The Netherlands
COMSOL Multiphysics® has standard facilities to export models to SimuLink®. Normally, the standard export works well if the solvers, available in SimuLink, can handle the problem. However, if a model in COMSOL Multiphysics® needs special solvers, for example airflow or other non-linear problems, the standard export to SimuLink is often not suitable, because the standard solvers of SimuLink® ...
Cypress Semiconductor Corp., San Jose, CA, USA
We report an implementation of parallel computing on Amazon Web Services™ (AWS) for touch-sensor modeling. COMSOL Multiphysics® was used to simulate an electromagnetic field distribution in a capacitive sensor assembly. Multiple COMSOL jobs were deployed on separate AWS instances and were executed in parallel. The simulation results indicate that implementation of parallel computing for COMSOL ...
Simulation of a New PZT Energy Harvester with a Lower Resonance Frequency Using COMSOL Multiphysics® - new
H. Elbahr, T. Ali[1,2], A. Badawi, S. Sedky
Zewail City of Science and Technology - Cairo, Cairo, Egypt
Cairo University, Cairo, Egypt
Energy harvesting from environmental vibration nowadays is feasible because of natural oscillations like that caused by air or liquid flow and by exhalation or the heartbeat of a human body. This vibration frequency is typically low (in order of less than 1 kHz). Accordingly, low-frequency vibration based energy harvesting systems are an important research topic; these systems can be used for ...
G. Latha, P. Nair
SSN College of Engineering, Chennai, Tamil Nadu, India
In a solid core PCF, structural parameters and the number of rings in the cladding region decide confinement losses, dispersion coefficients as well as bending losses. This paper evaluates some of commercially available solid core photonic crystal fibers. The dispersion coefficients and sensitivity of these fibers are estimated using COMSOL Multiphysics®, and compared with the theoretical values ...