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.

Flow of Dry Foam in a Pipe

M. Divakaran[1], S. K. Gupta[1]
[1]Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka, India

Due to the coupling of foam flow with foam generation step, the earlier studies on foam flow have not led to consistent results. An increase in flow rate to obtain ?P vs. Q data changes the foam under investigation itself. The controlled experiments carried out earlier in our group show that ?P increases with flow rate as Q^2/3, a weaker dependence than that known for laminar flow or plug flow ...

Development towards Non-invasive Breast Cancer Imaging using Novel Estrogen Conjugates Fluorescent Dye

Francis .K. J.[1], I. Jose[1]
[1]Christ University,Bangalore, Karnataka,India

Determination of Estrogen Receptor [ER] status is a key in detecting cancer pathogenesis at early stage. In our work we discuss Near Infrared Fluorescence [NIRf] Molecule Optical Imaging Diagnostic modality for early detection of breast cancer. A novel target-specific NIRf dye conjugate aimed at measuring Estrogen Receptor[ER] status was synthesized by ester formation between 17-? estradiol and ...

Sliding Performance of a Hyperelastic Seal

H. van Halewijn[1]
[1]Physixfactor, Nijmegen, The Netherlands.

A hyperelastic seal is pulled over a metal ring in a coffee machine for maintenance reasons. The force needed to pull the hyper elastic seal over the part is too high and should be reduced for maintenance reasons. Using the COMSOL Multiphysics® Structural Mechanics Module, and using the non-linear hyperelastic for the stick slip movement, a reliable simulation was generated. It resulted in an ...

COMSOL Multiphysics® Simulation of Heat Generation from Hydrogen/Deuterium Loading of Nickel Alloy Nanoparticles - new

G. Miley[1], A. Osouf[1], B. Stunkard[1], T. Patel[1], E. Ziehm [1], A. Krishnamurthy[1], K. J. Kim[1]
[1]University of Illinois at Urbana Champaign, Champaign, IL, USA

A key issue for the development of a LENR power unit involves the measurement and energy output of the reaction. Our team is currently studying a gas loaded nanoparticle-type cluster power unit [1] which pressurizes various nanoparticle alloys with either deuterium or hydrogen. The principal elements in the various nanoparticle alloys are Nickel, Palladium and Zirconium, with each alloy ...

Multiphysics Simulation of Polymer-Based Filters for Sub-Millimeter Space Optics - new

N. Baccichet[1], G. Savini[1]
[1]Department of Physics and Astronomy, University College London, London, UK

Multiphysics Simulation of Polymer-Based Filters for Sub-Millimeter Space Optics This work focuses its analysis on polymer-based filters used in space-borne astronomical instrumentation for Cosmic Microwave Background Radiation and Far-Infrared observations. Most of these observatories mount quasi-optical elements made of such materials, due to their high transparency and low absorption in ...

Carbon Nanotube Based Mass Sensor Using Atomic Resolution Nanomechanical Resonators

M. Roshini[1], G .B. Priyanga[1], K. C. Devi[1]
[1]PSG College of Technology, Coimbatore, Tamil Nadu, India

The objective of this paper is to design and simulate Carbon Nano-Tube (CNT) based mass sensor that determines extremely low measures of molecules using COMSOL Multiphysics® software. The ultimate goal of this nanomechanical resonator sensor is that it allows detection at single molecular level. The change in the mass from the resonator can cause a shift in the resonant frequency. The ...

Electron Drift in Xe Gas

T. J. Berger [1],
[1] Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, USA

The XENON Dark Matter Experiment utilizes ultra-pure xenon (Xe) as a target for particle interaction in the effort to detect dark matter particles. To measure the purity of Xe, a gas purity monitor (GPM) is being developed which drifts electrons through Xe gas to detect impurities that contribute to charge attenuation. An axially-symmetric model is used to simulate the electric field generated ...

Modeling Enzymatic Pathways in Giant Lipid Vesicles

F. Mavelli [1], E. Altamura [1], P. Stano [2],
[1] University “Aldo Moro”, Chemistry Department, Bari, Italy
[2] Science Department, Roma Tre University, Rome, Italy

Giant vesicles (GVs) are artificial chemical systems largely used as cell models, since they are micrometer-sized closed compartments bounded by a semi-permeable membrane, which in turn is composed by self-assembling amphiphiles. By opportunely engineering the lipid membrane and by entrapping cascade-reaction enzymes inside GVs, it is possible to design micro-sized reactors where metabolic ...

The Design of a Novel Roof Tile Shape Using CFD Analysis

M. Bottarelli [1], M. Bortoloni [1], G. Dino [1],
[1] University of Ferrara, Ferrara, Italy

In climates with high temperature and solar radiation, reducing the cooling consumption and increasing the standards of indoor comfort are topics of great importance. The roof plays a key role in controlling the indoor thermal comfort. In ventilated roofs, air flow within the ASV (Above Sheathing Ventilation) depends on the air entering and leaving at the eaves and the ridge, according to ...

Modeling Research Reactor Fuel Plate Hotspots with the Thin Layer and Thermal Contact Feature in the COMSOL Multiphysics® Software

M. J. Richards [1], A. E. Ruggles [2], J. D. Freels [3], ,
[1] Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN, USA
[2] Department of Nuclear Engineering, University of Tennessee, Knoxville, TN, USA
[3] Research Reactors Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA

One challenge with converting nuclear research reactors to low enrichment fuels is the thermal-fluid performance. Local areas of high temperature, known as hotspots, limit reactor performance and thus require accurate modeling. A simplified fuel plate model is eveloped to compare traditional FEA techniques with the thin layer and thermal contact features in the COMSOL Multiphysics® software for ...