Aqui você encontrará apresentações realizadas nas Conferências de Usuários COMSOL de todo o mundo. As apresentações englobam pesquisas e produtos inovadores feitas por engenheiros e cientistas usando o COMSOL Multiphysics. Os tópicos abrangem uma grande gama de indústrias e aplicações, como elétrica, mecânica, escoamento e química. Use a função de busca "Quick Search" para encontrar apresentações na sua área de interesse.
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Development of COMSOL-Based Applications for Heavy Oil Reservoir Modeling

S. Cambon [1], I. Bogdanov [1]
[1]Open & Experimental Center for Heavy Oil (CHLOE), University of Pau, Pau, France

The efficiency and environmental impact of oil production become a principal challenge of energy producing companies. The improvement of existing and development of novel methods are often feasible within either a “new” physical framework (from the viewpoint of oil reservoir applications) or a non-trivial combination of “known” phenomena. Last fifty years the dedicated reservoir simulators have ...

Modeling of Radial Source Flow in Porous Media: Miscible Viscous Fingering Patterns

V. Sharma [1], S. Pramanik [2], M. Mishra [1],
[1] Indian Institute of Technology Ropar, Rupnagar, India
[2] Indian Institute of Technology Ropar, Rupnagar, India; Nordita, SE-10691 Stockholm, Sweden.

COMSOL Multiphysics® software was used to model radial source flow in two dimensional homogeneous porous media. Two-Phase Darcy's Law (tpdl) is used to model miscible viscous fingering. Fingering patterns obtained on using different mesh are discussed. Evolution from 'flowers' to 'branches' is observed in the fingering patterns. Stable displacement is generated even in the presence of unstable ...

Modeling and Simulation of Drug Release through Polymer Matrices - new

V. Runkana[1], A. Pareek[1], P. Arora[2]
[1]Tata Consultancy Services, Pune, Maharashtra, India
[2]Indian Institute of Technology Delhi, New Delhi, Delhi, India

Limited drug efficacy, undesirable temporal changes in drug concentration and patient non-compliance due to frequent dosing schedule have given impetus to design of controlled drug release systems [1]. Biodegradable polymers due to their favorable and tunable properties and biocompatibility have found widespread use in the field of controlled drug delivery [2]. Exploratory in vitro experiments ...

Implementation of a Porous Media Model for Simulating Pressure Development in Heated Concrete

B. Weber [1], D. Dauti [2], S. Dal Pont [2],
[1] Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
[2] Laboratoire 3SR, University Grenoble Alpes, Grenoble, France

When concrete is subjected to high temperature, capillary water evaporates and chemically bound water is released due to dehydration. This results in an increase of pore pressure, which is believed to be one of the mechanisms leading to spalling. Spalling of concrete is of high concern for the fire safety of concrete structures. We consider a model implemented in COMSOL® using the Weak Form ...

Transdermal Drug Delivery with Permeation Enhancer

A. Kermani [1], N. Elabbasi [1]
[1] Veryst Engineering, Needham, MA, USA

Transdermal drug delivery (TDD) is used to deliver drugs through the skin as an alternative to oral, intravascular, and subcutaneous routes. While there are many advantages to TDD, skin is a very effective barrier and provides resistance to drug delivery. To improve drug delivery through the skin, permeation enhancers are used. We developed an axisymmetric COMSOL Multiphysics® software model ...

Multiphysics Simulation of a Packed Bed Reactor

A.E. Varela[1], and J.C. García[1]

[1]University of Carabobo, Valencia, Venezuela

Most reactor designs are based on pseudo homogeneous models. This paper studies the COMSOL simulation of a packed bed reactor using a 2-D heterogeneous model. The case considered was a packed reactor with spherical catalyst for oxidation of o-xylene in air to phthalic anhydride. Large differences in intra-pellet temperature were found in comparison with the average temperatures resulting from ...

Simulating Corrosion in a Crevice of Commercial Pure Titanium

G. Zhang [1, 2, 3],
[1] Department of Bioengineering, Clemson University, Clemson, SC, USA
[2] Department of Electrical and Computer Engineering, Clemson, SC, USA
[3] Institute for Biological Interfaces of Engineering, Clemson University, Clemson, SC, USA

Implant devices are assistive devices surgically placed in the human body to restore the functionality of organs and tissues. Metallic implants are often used for load bearing applications including the hip and knee joints. To allow maximum flexibility during surgery for surgeons to pick and choose different combinations of parts (say, head, neck and stem, in the case of total hip replacement), ...

Migration of Mineral Oil Saturated and Aromatic Hydrocarbons(MOSH, MOAH) through Multi-Layered Packaging into Food

C. Kirse [1], F. Edel [1], H. Briesen [1],
[1] Chair of Process Systems Engineering, Technical University of Munich, Germany

Substances like Mineral Oil Saturated Hydrocarbons (MOSH) and Mineral Oil Aromatic Hydrocarbons (MOAH) are suspected to be carcinogenic. Furthermore, MOSH/MOAH migrate through the packaging into food stuff. This work aims at modelling, how much MOSH/MOAH migrates from the packaging into food to evaluate the exposure to toxic substances. The scope of the project is not to investigate one specific ...

Three-Dimensional (3D) Modeling of Heat and Mass Transfer during Microwave Drying of Potatoes

H. Zhu[1][2], T. Gulati[2], A. K. Datta[2], K. Huang[1]
[1]Institute of Applied Electromagnetics, Sichuan University, Chengdu, China
[2]Department of Biological and Environment Engineering, Cornell University, Ithaca, NY, USA

Microwave drying of fruits and vegetables in a domestic oven has been found to result in large textural changes in the product such as puffing, crack formation and even burning due to the inhomogeneous heating of the microwaves. Microwave drying of potatoes is a complex interplay of mass, momentum and energy transport. Three phases are considered in the system: solid (skeleton), liquid (water) ...

Optimization of the Herringbone Type Micromixer Using Numerical Modelling and Validation by Measurements - new

E. Tóth[1], K. Iván[1], P. Fürjes[2]
[1]Pázmány Péter Catholic University, Budapest, Hungary
[2]Research Centre for Natural Sciences Institute for Technical Physics and Materials Science Hungarian Academy of Sciences, Budapest, Hungary

COMSOL Multiphysics® software was used in this study to simulate mixing by diffusion and by secondary flow. Particle tracing model was applied to simulate the mixing of cells in the microchannel. Results agreed well with the measurement, an optimal herring-bone structure was proposed for integration into a bioanalytical system.