A Modified Koutecký-Levich Equation for the Analysis of Electrochemical Flow Cells with Complex Geometries
S. A. Tschupp , S. E. Temmel , N. Poyatos Salguero , J. Herranz , T.J. Schmidt ,
 Paul Scherrer Institut, Villigen, Switzerland
 ETH Zürich, Zürich, Switzerland
Electrochemical flow cells have found widespread use in analytical chemistry due to their short response time, high sensitivity and selectivity. The geometrical flexibility and therefore, the ease of coupling the electrochemical to other experimental techniques has attracted considerable interest for applications in electrocatalytic research as well. Such coupling is far more cumbersome with the ...
Simulations of Scanning Electrochemical Microscopy Experiments in Pure Negative and Positive Feedback Mode with Ring Microelectrodes
J. Mauzeroll, M. Mayoral, and D. Fabre
Department of Chemistry, Université du Québec à Montréal, Montreal, Quebec, Canada
Scanning electrochemical microscopy (SECM) is a powerful tool recently developed for studying structures and processes in micrometer and submicrometer sized systems. It can probe electron, ion, and molecule transfers, and other reactions at solid-liquid, and liquid-liquid, interfaces . This versatility allows for the investigation of a wide variety of processes, from metal corrosion to ...
S. Kadam, T. Gulati, A. Datta
Indian Institute of Technology, Kharagpur, India
Cornell University, Ithaca, NY, USA
Kheer is a popular Indian dairy dessert prepared from concentrating milk with simultaneous cooking of rice grains. Conventional methods of preparing kheer have limited its mechanized production. Therefore, a conceptual design of continuous kheer-making machine has been prepared which among other components consists of a heating section for cooking kheer. The present study investigates the CFD ...
COMSOL Multiphysics® Software Activities Within the Research Reactors Division of Oak Ridge National Laboratory
J. D. Freels , P. K. Jain , C. J. Hurt , F. G. Curtis , M. W. Crowell , E. L. Popov ,
 Oak Ridge National Laboratory, Oak Ridge, TN, USA
 University of Tennessee, Knoxville, TN, USA
INTRODUCTION Our group at ORNL started using COMSOL Multiphysics® software shortly after version 3.0 was released in the Spring of 2004. After 11 years and several releases, the application usage has grown along with number of licenses we are responsible for. This paper will broaden the scope and take a look at our past and present applications, and evaluate where we are headed with COMSOL ...
T. J. Kazdal , M. J. Hampe ,
 Technische Universität Darmstadt, Darmstadt, Germany
A micro steam methane reformer is a complex product consisting of multiple units. For the virtual functional product development it is necessary to validate these sub models separately. Therefore a reactor was designed to analyse kinetics of chemical reactions. The reactor design is based on a simulation geometry and the boundary conditions of the simulation were recreated in the experimental ...
A COMSOL Multiphysics® Software Analysis of Beam Tube Cooling in the High Flux Isotope Reactor of ORNL
J. D. Freels ,
 Research Reactors Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
Previous to the present work, a formal calculation was approved [1,2] to support the operation of the High Flux Isotope Reactor (HFIR) Horizontal Beam-Tube 1 of 4 (HB-1). The present calculation [3,4] repeats the previous work using COMSOL Multiphysics® software and extends the analysis to cover a broader range of coolant flow. In addition, this new calculation expands the analysis much further ...
Modeling the Acoustic Scattering from Objects Buried in Porous Sediment Using COMSOL Multiphysics® Software
A. Bonomo , M. Isakson ,
 Applied Research Laboratories, The University of Texas at Austin, Austin, TX, USA
A frequency-domain finite element (FE) technique for computing the acoustic scattering from axially symmetric fluid-loaded structures subject to a nonsymmetric forcing field based on Ref. 1 is extended to poroelastic media and implemented in COMSOL Multiphysics® software. This method allows for the scattering body to consist of any number of acoustic, elastic, and poroelastic domains. The ...
J. Ma , C. Koutsougeras , H. Luo ,
 Sam Houston State University, Huntsville, TX, USA
 Southeastern Louisiana University, Hammond, LA, USA
In this work, the CFD Module of COMSOL Multiphysics® software is used to study the efficiency of a Vertical Axis Wind Turbine (VAWT) with independently pivoting airfoils so that wind attack angles of these airfoils are adjustable. The work demonstrates how the efficiency of the VAWT is affected by the pivoting angles between individual airfoils and their support arms. The goal is to maximize ...
J. S. Karthikeyan , D. Salvi , M. V. Karwe ,
 Rutgers University, New Brunswick, NJ, USA
Digestion is the process of breaking down food into smaller components, by mechanical and enzymatic action in the digestive tract, so that the smaller nutrient molecules can be more easily absorbed in the intestinal tract. To study and analyze the human digestive process, different methodologies have been used in the past. In general, in vivo feeding studies with humans provide the most accurate ...
A. Fadel, G. Fontana
Isoil Impianti, Albano S. Alessandro, Italy
Industrial applications of fluid mechanics can require to satisfy necessities as diverse as legal norms, optimization requirements and manufacturing constraints. Therefore a Computational Fluid Mechanics software often becomes a must in the development of new devices or the improvement of older ones. Besides the legalistic aspect (such as the European Pressure Equipment Directive), several steps ...