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.

Numerical Simulation of Kinetic Interface Sensitive Tracer in Experiment with COMSOL Multiphysics® Software

F. Sun [1], A. Tatomir [1], F. Maier [2], M. Sauter [1]
[1] University of Goettingen, Goettingen, Lower Saxony, Germany
[2] Comsol Multiphysics GmbH, Goettingen, Lower Saxony, Germany

The kinetic interface-sensitive tracers (KIS tracers) are used to give a partial picture of the spreading, mixing and plume migration of supercritical carbon dioxide (scCO2) in the deep saline aquifer by estimating the interfacial areas between scCO2 and brine during the injection of scCO2. To get a better understanding of the KIS tracer reaction and transport processes in the two-phase flow ...

Modeling and Simulation of a Thermal Swing Adsorption Process for CO2 Capture and Recovery

M. Lei, C. Vallieres, G. Grevillot, and M.A. Latifi
LRGP - CNRS - ENSIC, Nancy, France

The present study deals with a twodimensional modeling and simulation of a thermal swing adsorption (TSA) process used for the capture of CO2 from CO2/N2 mixture. The models are described by partial differential equations (PDEs) including conservation equations, models for equation of state, equilibrium, thermodynamic and transport properties. The resulting models involve different unknown ...

Geometric Optimization of Micromixers

M. Jain[1], A. Rao[1], K. Nandakumar[1]
[1]Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA, USA

The performance of a homogeneous T-mixer can be enhanced significantly by the stimulation of secondary/ transverse flows in the microchannel. Various mixing mechanisms are reported for enhancing micromixing performance such as grooves at the channel bottom, heterogeneous charge patterns etc. Most of these micromixers are studied with respect to planar geometric parameters such as groove width, ...

Reverse Electrodialysis Process with Seawater and Concentrated Brines: a COMSOL Multiphysics® Model for Equipment Design

M. Tedesco[1], A. Cipollina[1], C. Scavuzzo[1], A. Tamburini[1], G. Micale[1]
[1]Dipartimento di Ingegneria Chimica, Gestionale, Informatica, Meccanica (DICGIM), Università di Palermo (UNIPA), Palermo, Italy

Salinity Gradient Power (SGP) is a promising renewable energy source associated to the controlled mixing of two aqueous solutions of different salinities. Recently, Reverse Electrodialysis process (SGP-RE, or RED) has been identified as a successful way for the exploitation of such energy source, allowing the conversion of SGP directly into electric energy. COMSOL Multiphysics® modelling ...

Multiphysics Model for Breakup of Charged Liquid Droplets in Electric Fields

S. Chaudhuri [1], W. Du [1],
[1] University of Illinois at Urbana-Champaign, Champaign, IL, USA

Predicting and controlling the formation of droplets from a liquid jet is a critical problem in a variety of applications ranging from fuel injection to paint sprays. It is known that liquid droplets subjected to an electric field acquire a net electrostatic charge via induction, and that the magnitude of this charge depends on the conductivity of the liquid and the size of the droplet [1]. When ...

Modeling of Biocalcification in Non-Saturated Conditions

B. Courcelles [1], C. Raymond-Poirier [1],
[1] École Polytechnique de Montréal, Montréal, QC, Canada

In the context of increasing demographic pressures around the world, soil improvement techniques constitute viable alternatives to expensive foundations. Among these techniques, the biocalcification of granular soils appears as a promising alternative relying on the formation of calcium carbonates. The process is relatively basic and energy efficient, as based on the metabolic activity of the ...

A 2D Model of the Flow in Hydrocyclones - new

B. Chinè[1], F. Concha[2], M. Meneses G.[3]
[1]School of Materials Science and Engineering, Costa Rica Institute of Technology, Cartago, Costa Rica
[2]Department of Metallurgical Engineering, University of Concepcion, Concepcion, Chile
[3]School of Production Engineering, Costa Rica Institute of Technology, Cartago, Costa Rica

Hydrocyclones are industrial devices used as processing units in fluid and particle technology. A hydrocyclone is an apparatus consisting of a cylindrical or a cylindrical-conical body with a tangential or involute entrance to admit the fluid inside. There are also two opposite exits, the top exit which is the vortex finder and the bottom exit called apex. Fig. 1 shows the schematic of a widely ...

Simulation of Spiral-Tube Heat Exchangers in COMSOL Multiphysics® Software

K. O. Lund [1], S. M. Lord [2],
[1] Kurt Lund Consulting (COMSOL Certified Consultant), Del Mar, CA, USA
[2] SML Associates, Encinitas, CA, USA

A frequently occurring geometry for heat exchangers is that of a long tube wound into a helix or spiral around a core volume. There is to be heat exchange between the tube and the gases (or solids) in the core. However, the length scales of these two parts of the geometry are very different, thus complicating the interface between the tube and the core processes. Usually, the tube is too ...

Simulation of a Dynamic Scraped Surface Heat Exchanger for Non-Newtonian Fluids

S. Birla [1],
[1] ConAgra Foods, Omaha, NE, USA

Scraped surface heat exchangers (SSHEs) are commonly used in the food, chemical, and pharmaceutical industries for heat transfer, crystallization, and other continuous processes. One of the factor posing difficulties to heat transfer is viscosity. Highly viscous fluids tend to generate deep laminar flow, a condition with very poor heat transfer rates and high pressure losses involving a ...

Model of a Filament Assisted CVD Reactor

J. Brcka[1]

[1]TEL US Holdings, Inc., Technology Development Center, Albany, New York, USA

In this presentation we are dealing with the computational fluid model of a Filament Assisted Chemical Vapor Deposition (FACVD) reactor. Proposed strategy in this study involved several steps: (a) development a computational model for FACVD process capable to describe and obtain with reasonable accuracy all relevant phenomena occurring in the reaction chamber; (b) validation the computational ...