Sehen Sie, wie die Multiphysik-Simulation in Forschung und Entwicklung eingesetzt wird

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Sehen Sie sich die Kollektion für die COMSOL Conference 2023 an

Humidity Mass Transfer Analysis in Packed Powder Detergents

F. Zonfrilli[1], V. Guida[1], L. Scelsi[1]
[1]Procter & Gamble Italia, Pomezia, Roma, Italy

Powder detergents containing sodium percarbonate and bleach activators undergo chemical decomposition when exposed to high relative humidity. Controlling the moisture intake in finished product packs is therefore a fundamental need in order to guarantee product stability during the whole ... Mehr lesen

Thermo-Mechanical Analysis of Composite Material Exposed to Fire

A. Davidy[1]
[1]IMI, Ramat Hasharon, Israel

This paper presents thermo-mechanical models for predicting the strength of polymer laminates loaded in tension or compression exposed to one-sided radiant heating by fire. The first part is the fire simulation where the FDS model is utilized. The FDS model generates a solution of ... Mehr lesen

Thermal Analysis of a Piezo-Disk Ultrasound Probe

L. Spicci[1], M. Cati[1]
[1]Esaote, Firenze, Italy

Ultrasound imaging probes are widely used for several types of diagnosis applications. In the present work we focus our attention on a disk-type probe, which is widely used in CW and PW operating conditions. In particular we present a 2D-axial symmetry FEM for the probe, capable to ... Mehr lesen

Downscale Finite Element Modeling of Aortic Valve Leaflets for In-Situ Estimation of Cell Level Mechanics

R. Buchanan[1], M. Sacks[1]
[1]Institute for Computational Engineering and Sciences, Department of Biomedical Engineering, University of Texas, Austin, TX, USA

As in all tissues, mechanical forces in the aortic valve (AV) modulate the constituent cell population’s physiology and biosynthetic activity. While advances have been made toward the understanding of this complex multi-scale relationship, the specific role that and extracellular matrix ... Mehr lesen

A Study of the Effects of Mounting Supports, and Dissipation on a Piezoelectric Quartz Double-Ended Tuning Fork Gyroscope

G. Choi[1], Y. Yong[1]
[1]Rutgers University, New Brunswick, NJ, USA

A COMSOL model of a piezoelectric quartz double ended tuning fork gyroscope was implemented. The gyroscope has two detection modes; the first mode detects the angular velocity about a z-axis perpendicular to the tuning fork plane (x-y plane), while the second mode detects the angular ... Mehr lesen

Parametric Study of Electrolyte-Supported Planar Button Solid Oxide Fuel Cell

A. Aman[1], R. Gentile[1], Y. Xu[1], N. Orlovskaya[1]
[1]Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL, USA

Fuel cells are devices that convert chemical energy of a fuel into electrical energy through electrochemical processes. One of the types of fuel cell is the Solid Oxide Fuel Cell (SOFC) that uses solid ceramics for electrolytes. Numerical simulation involves constructing a mathematical ... Mehr lesen

Thermo-Elastic Response of Cutaneous and Subcutaneous Tissues to Noninvasive Radiofrequency Heating

J. Jimenez-Lozano[1], P. Vacas-Jacques[1], W. Franco[1]
[1]Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA

Radiofrequency (RF) technology offers unique advantages for noninvasive selective heating of relatively large volumes of tissue. In this work, we present a mathematical model for selective non-invasive, non-ablative RF heating of cutaneous and subcutaneous tissue (with detailed fiber ... Mehr lesen

Modeling a Non-Flooding Hybrid Polymer Electrolyte Fuel Cell and Related Diffusion-Migration-Reaction Systems

B.E. McNealy[1], J.L. Hertz[1]
[1]University of Delaware, Newark, DE, USA

Introduction: Understanding the mass and charge transport behavior of heterogeneous systems that include diffusion, migration, and reaction of ions is important in fuel cells, batteries, and other electrochemical applications. Here, a numerical model for charged species transport and ... Mehr lesen

Numerical Modeling of Pit Growth in Microstructure

S. Qidwai[1], N. Kota[2], V. DeGiorgi[1]
[1]Naval Research Laboratory, Washington, DC, USA
[2]Science Applications International Corporation, Washington, DC, USA

Pitting corrosion is a complex phenomenon where rates of: i) chemical reactions, ii) diffusion of various species involve in those reactions, and iii) species dissolution at the metal-electrolyte interface are fully dependent on each other, except under special conditions or assumptions. ... Mehr lesen

Pulsed Eddy Current Probe Development to Detect Inner Layer Cracks Near Ferrous Fasteners Using COMSOL Modeling Software

V. Babbar[1], P. Whalen[1], T. Krause[1]
[1]Department of Physics, Royal Military College of Canada, Kingston, ON, Canada

Surface breaking cracks in conductive structures can be detected by conventional eddy current techniques. However, it is very difficult to detect inner layer defects in multilayered conductive structures either by conventional eddy current or ultrasonic methods. The transient/pulsed eddy ... Mehr lesen