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.

Microwave Drying of Cellular Ceramic Substrates: A Conjugate Modeling Approach to Understand Surface Moisture Migration

A. Halder, and J. George
Corning, Inc.
Painted Post, NY

Microwave drying processes are critical components in the manufacture of cellular ceramic substrates and filters. The objective of this study is to develop a comprehensive model at a small scale and include all the possible physics that are important during microwave drying processes. Based on the results, conclusions are made on the importance of different factors in drying.

Evaluation of COMSOL as a Tool for Pinpointing Moisture Entering Locations From Inside Surface Moisture

J. van Schijndel
Eindhoven University of Technology, Eindhoven, Netherlands

The location and nature of the moisture leakages are sometimes difficult to detect. Moreover, the relation between observed inside surface moisture patterns and where the moisture enters the construction is often not clear. The objective of this paper is to investigate inverse modeling techniques as a tool for the detection of moisture leakage locations in building constructions from inside ...

Blistering of Industrial Floor on Concrete Substrate: the Role of the Air Overpressure

S.V. Aher[2], P. Devillers[1], G. Fau[3], B. Tranain[3], and C. Buisson[1]
[1]Centre des Matériaux de Grande Diffusion, Ecole des Mines d’Alès, Alès cedex, France
[2]Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh, India
[3]Centre Scientifique et Technique du Bâtiment, France

Surface coating can fullfil their function satisfactorily over an extended period of time only if there is a good bond between the concrete substrate and the coating. The most numerous cases of blistering affect the airtight covers of the concrete subjected to negative pressures of humidity from the support. The general objective of this study is the understanding of the blistering phenomenon. ...

Solving Two-scale Transport Laws During Frying of Foods Using COMSOL Multiphysics

J. Maneerote, and P.S. Takhar
International Center for Food Industry Excellence Texas Tech University, Lubbock, TX, USA

Microscale comprised of the scale of food biopolymers at which biochemical reactions and textural changes take place, and the macroscale was the scale of interaction of polymers with surrounding water, vapor and oil phases. Numerous novel equations such as generalized Darcy’s law based fluid transport equations for various phases; near-equilibrium equation governing phase change from liquid ...

Vibro-acoustic modeling, analysis and optimization using COMSOL Multiphysics - new

Yu Xiang [1],
[1] Agency for Science, Technology and Research (Institute of High Performance Computing), Singapore

Vibro-acoustics encompasses the study of interaction between sound and vibration. For example, sound transmission analysis is important to design vehicle bodies and building partitions, advanced noise control technologies can ease the increasing noise pollution problem in densely populated cities, and hearing-aid is a good application of acoustics in biomedical engineering. In IHPC, we ...

Red Blood Cell Separation Using Magnetophoresis Force - new

Tran Si Bui Quang [1],
[1] Agency for Science, Technology and Research (Institute of High Performance Computing), Singapore

The separation of RBCs is needed in many biomedical devices. RBCs contain hemoglobin, which in turn consists of iron that helps transport oxygen throughout the body. The permeability of deoxygenated red blood cells is about (1 – 3.9e-6). The permeability of oxygenated red blood cells is about (1 – 9.2e-6). The permeability of plasma is about (1 – 7.7e-6). Due to the difference of permeabilities, ...

Novel Sensor Technology for Point of Care Diagnostics

V. Djakov
Sensor Development Director
Microvisk Technologies Ltd
UK

Dr Vladislav Djakov is the co-founder of Microvisk Technologies Ltd and the inventor of its MEMS-based Technology. Born in Belgrade, Serbia he came to UK in 1995 to pursue M.Sc. in Artificial Intelligence followed by Ph.D. in Micro-robotics. With over 14 years of extensive ‘hands-on’ expertise on a number of micro-fabrication techniques, using standard and novel materials, as well as ...

Enhanced Fin Tube Heat Exchanger Design Through Topology Optimization - new

Shi Zeng [1],
[1] National University of Singapore, Singapore

Fin tube heat exchangers are widely used in air conditioning systems. Various fin structures have been proposed and studied in literature to enhance their heat transfer performance. However, enhancement in heat transfer is often accompanied by pressure drop penalty. This study utilized a numerical method, topology optimization, to design novel fin structures for enhancing heat transfer ...

Numerical Optimization of Microelectrode Systems for Single Cell Manipulation by Dielectrophoresis - new

Nguyen Ba Loc [1],
[1] Nanyang Technological University, Singapore

Precise single cell manipulation is useful for many biomedical applications such as tissue engineering, cell-based bio-sensing, image-based cell selection and cell-cell interaction. Among the various techniques to control the location of cells, dielectrophoresis (DEP) proves to be a very promising approach to manipulate large quantity of cells with easy operation and less damage than traditional ...

Analysis Of The Design Criteria For Ancient Greek And Roman Catapults

K.M. Paasch
Center for Product Development, Mads Clausen Institute, South Danish University, Denmark

This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world from around 399 BC and a fully standardized design for powerful torsion catapults emerged around 270 BC, based on one basic factor, the diameter of the torsion ...