H. Kwon, and E. Akyiano
Dept. of Engineering and Computer Science
Berrien Springs, MI
In this paper, the cyclic voltammetry behavior of Ferrocyanide/Ferricyanide, which is commonly used for electrochemical DNA detection experiment, was studied in the commercial EQCM-D setup (Q-sense) using the COMSOL Multiphysics. The model was established in a 3D geometry of QCM liquid cell. The simulation shows depletion of concentration of ferrocyanice following applied electrode ...
P. L. Mills , K. Barman , S. Mothupally , A. Sonejee ,
 Texas A&M University - Kingsville, Kingsville, TX, USA
Introduction Fluid flow patterns in research or process-scale equipment where a fluid is contained between concentric rotating cylinders in the absence of bulk axial flow has received notable attention in the field of fluid mechanics. Annular flows occur in many practical applications, such as in the production of oil and gas, fluid viscometers, centrifugally-driven separation processes, ...
Northwestern University, Evanston, IL, USA
Dye sensitized solar cells (DSSCs) have received tremendous attention as alternative photon harvesting devices. While the sintered TiO2 nanoparticle network attached with dye molecules achieves efficient photon absorption, the electrons have to diffuse through the long TiO2 network to reach the contact, resulting in a high electron density and thus increased recombination. Extensive research ...
P. Aliabadi, S. Mahmoud, R. K. AL-Dadah
Mechanical Engineering Department, University of Birmingham, Birmingham, UK
This study is focused on using a thermoelectric device (TED) as an alternative to the cryogenic liquid for cooling cryosurgical probe used for cancerous tissue ablation. Thermoelectric device, namely Peltier, is a solid state device which converts electric current to thermal gradient. In past years thermoelectric devices have been successfully utilized in refrigeration and air conditioning ...
P. K. Bahumanyam
University of Alabama in Huntsville, Huntsville, AL, USA
Viable design alternative for the existing and fast growing UAVs which are optimized for unmanned flight is of great demand. Designing of a small scale UAV alternative to the AAI Aerosonde UAV has been considered changing the wing tail configuration of the vehicle analyzing both structural and aerodynamic performance improvements using COMSOL Multiphysics® software.
Modeling of Packed Bed Reactors: Hydrogen Production by the Steam Reforming of Methane and Glycerol - new
A. Dixon, B. MacDonald, A. Olm
Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA
The conventional route to hydrogen production is by steam reforming of methane (MSR) in a multitubular packed bed. With the increasing use of biodiesel as a renewable fuel, interest has grown in steam reforming of the excess glycerol produced as a side product (GSR). We use COMSOL Multiphysics® software to model a tubular packed bed reactor, solving a single pellet model at each point. The ...
Chalmers University of Technology, Gothenburg, Sweden
Streamers are considered as main cause of electrical breakdown in air at atmospheric pressure. A streamer is an ionization wave propagating in neutral gas which is converted into low-temperature plasma behind its front. A streamer model is based on drift-diffusion approach where space and time evolution of densities of charge carriers is considered. It results in three convection-diffusion PDEs ...
T. Karmokar, R. Pietsch
HIGHVOLT Prüftechnik Dresden GmbH, Dresden, Sachsen, Germany
The computation of electric field strength is the state-of-the-art technique for designing and optimizing High-Voltage (HV) equipment. In this research, the equipment under analysis is Cable Termination (CaTr) which is used to apply high-voltage (75 kV – 800 kV AC) on the cable to be tested (Figure 1). The CaTr is based on the principle of linear electric field control using deionised water with ...
R. W. Pryor
Pryor Knowledge Systems, Inc., Bloomfield Hills, MI, USA
The conductivity of seawater directly correlates with the concentration of dissolved salts. This model demonstrates a new approach to the methodology of inductive conductivity measurement of seawater and other liquids. COMSOL Multiphysics® was used to build a parametrically swept model of an O-Core Inductive Conductivity Measurement Sensor for Seawater. This sensor model is built using the ...
A. Bahrami, D. K. Aidun
MAE Department, Clarkson University, Potsdam, NY, USA
COMSOL Multiphysics® is used to simulate the transport phenomena in arc welding of Nickel to 304SS. Electric Currents (ec) and Magnetic Fields (mf) are used to solve for the Lorentz force which is one of the volume forces. Laminar Flow (spf) is used to simulate flow field. The Lorentz and buoyancy forces are applied as volume forces to the fluid domain. Marangoni effect also is applied to the ...