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.

Solving a Two-Scale Model for Vacuum Drying by Using COMSOL Multiphysics

S. Sandoval Torres[1]
[1]Instituto Politécnico Nacional, CIIDIR, Oaxaca, Mexico

Drying of porous materials is characterized by the invasion of a gaseous phase replacing the evaporating liquid phase. Vacuum drying is an advanced method applied to oakwood to diminish discoloration, so understand its physics is a very important task. In this work, a two-scale model is solved to simulate vacuum drying of oakwood. A two scale model describes the physics of wood-water relations ...

Simulation of Transdermal Toxin Expulsion via Adsorptive Dermal Patch using COMSOL Multiphysics®

H. Kwon[1], M. Hess II[1], R. M. Polski
[1]Andrews University, Berrien Springs, MI, USA

Mathematical skin models play an important role in fields such as transdermal drug delivery and assessment of dermal exposure to industrial chemicals. Extensive research has been conducted on modeling skin for transdermal drug delivery; however, little effort has been made to view the skin as a permeable layer to expel waste chemicals or toxins from the body. In this work, we focused on topical ...

A CFD Analysis of the Operating Conditions of a Multitube Pd Membrane for H2 Purification - new

B. Castro-Dominguez[1], R. Ma[1], A. G. Dixon[1], Y. H. Ma[1]
[1]Chemical Engineering Department, Worcester Polytechnic Institute, Worcester, MA, USA

The optimization of operating conditions in multitube membrane modules is highly complex. The multiple physics and irregular geometries involved create a challenge for predicting their behavior. This work analyzes the performance of H2 purification through a module containing seven membranes. Using experimental parameters, a 3-D model was devised, specifying the membrane as a reacting boundary ...

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 ...

Theoretical and Practical Approach for Transdermal Drug Delivery using Microneedle for Successful Skin Penetration

Jeevan J.Mahakud[1], Ziaur Reheman[2]
[1]Department of electronics and Communication engineering, Institute of technical education and research, Bhubaneswar, Odisha, India
[2]Department of electronics and instrumentation engineering, Institute of technical education and research, Bhubaneswar, Odisha, India

With the advent of MEMS, transdermal drug delivery has been developed to increase skin permeability for drug transport. Various microneedle structures have been analyzed theoretically as well as through simulation using COMSOL Multiphysics®. Then computational fluid dynamics has been presented in order to study the behavior of the fluid flow inside the microneedle cavity. In this report, the ...

Comparing Different Approaches for Moisture Transfer Inside Constructions with Air Gaps

L. Nespoli[1], M. Bianchi Janetti[2], F. Ochs[2]
[1]Politecnico di Milano, Milan, Italy
[2]University of Innsbruck, Innsbruck, Austria

A model for the conjugate simulation of heat and moisture transfer inside porous materials and fluid domains is implemented in COMSOL Multiphysics®. The results of this model are compared with those obtained through a simplified approach: the line-source approach. The models are both validated with experimental data and with numerical results from other authors. On the one hand the conjugate ...

Numerical Modeling of Heat and Mass Transfer in Porous Materials During Drying and Shrinkage

D. Lelièvre[1], P. Glouannec[1]
[1]Université de Bretagne-Sud, Lorient, France

Drying is an essential step in many manufacturing processes, for it will have an important impact on the product quality. This is why many numerical models have been realized over decades, in order to predict the hygrothermal behavior of porous media during the drying process. In this paper, we present a model allowing to properly simulate the pressure, heat and mass transfer during the drying ...

Modelling of the Oxygen Consumption of Cells in the Cell Culturing Platform - new

A. Niazi[1]
[1]School of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom

A device for monitoring the oxygen consumption of cells has been developed, which consists of two parts; a cell culturing platform (CCP) and an oxygen sensing chip. The CCP possesses inlet and outlet pipes to direct the fluid under the test to the cell culturing chamber through the inlet pipe and goes out of the outlet pipe after being partially consumed by the cells. In this abstract, the ...

Model of Pressure Drop Separation during Aqueous Polymer Flow in Porous Media

D. C. Raharja [1], R. E. Hincapie [1], M. Be [1], C. L. Gaol [1], L. Ganzer [1],
[1] Clausthal University of Technology, Clausthal-Zellerfeld, Germany

Aqueous polymers used for enhanced oil recovery (EOR) application is considered a complex fluid. It can exhibit Newtonian and Non-Newtonian behavior depending on the velocity or the stresses that it is submitted during the flooding process. Therefore, the polymer flooding project requires a detailed understanding of chemical and physical process occurred in the porous subsurface reservoir, ...

Modeling of Straight Jet Dynamics in Electrospinning Process

R. Pandya [1], A. Kumar [2], V. Runkana [1],
[1] Tata Research Development and Design Centre, Tata Consultancy Services, Pune, India
[2] Indian Institute of Technology, Delhi, India

Electrospinning is a process where high voltage is applied to produce polymer fibers of nanoscale diameter. Various polymers have been used for this process in molten form or as a solution with an appropriate solvent such as glycerol. The melt solidifies while the solvent evaporates to produce fibers. The fibers produced have properties such as high surface to volume ratio and a molecular ...